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nuclear fission reactions</a></li><li><a href="../19429/solar-energy-1.html">Solar energy</a></li><li><a href="../19437/environmental-impact-global-warming-1.html">Environmental impact - global warming</a></li><li><a href="../19453/electrochemistry-rechargeable-batteries-fuel-cells-1.html">Electrochemistry, rechargeable batteries & fuel cells</a></li><li><a href="../19458/nuclear-fusion-fission-hl--1.html">Nuclear fusion & fission (HL) </a></li><li><a href="../19470/photovoltaic-cells-and-dsscs-1.html">Photovoltaic cells and DSSCs</a></li></ul></li><li><a href="../19078/option-d-1.html" class="father">Option D</a><ul class="level-2"><li><a href="../19079/pharmaceutical-products-drug-action--1.html">Pharmaceutical products & drug action </a></li><li><a href="../19158/aspirin-penicillin--1.html">Aspirin & penicillin </a></li><li><a href="../19174/opiates-1.html">Opiates</a></li><li><a href="../19184/ph-regulation-of-the-stomach-1.html">pH regulation of the stomach</a></li><li><a href="../19194/antiviral-medications--1.html">Antiviral medications </a></li><li><a href="../19211/environmental-impact-of-some-medications-1.html">Environmental impact of some medications</a></li><li><a href="../19254/taxol-a-chiral-auxiliary-case-study-1.html">Taxol - a chiral auxiliary case study</a></li><li><a href="../19258/nuclear-medicine--1.html">Nuclear medicine </a></li><li><a href="../19273/drug-detection-analysis--1.html">Drug detection & analysis </a></li></ul></li></ul></li><li><a href="../16592/practical-scheme-of-work-ia--1.html">Practical scheme of work & IA </a><ul class="level-1"><li><a href="../16682/internal-assessment-1.html" class="father">Internal Assessment</a><ul class="level-2"><li><a href="../18892/scaffolding-the-investigation-1.html">'Scaffolding' the investigation</a></li><li><a href="../18896/timing-organisation--1.html">Timing & organisation </a></li><li><a href="../18905/choosing-the-research-question-1.html">Choosing the research question</a></li><li><a href="../18946/personal-engagement-1.html">Personal engagement</a></li><li><a href="../18950/exploration-1.html">Exploration</a></li><li><a href="../18957/analysis-1.html">Analysis</a></li><li><a href="../18965/evaluation-1.html">Evaluation</a></li><li><a href="../18966/communication-1.html">Communication</a></li><li><a href="../19882/internal-standardization-of-the-ia-1.html">Internal standardization of the IA</a></li><li><a href="../19901/submitting-the-samples-for-moderation-2.html">Submitting the samples for moderation</a></li><li><a href="../33754/ten-suggestions-for-ias-using-secondary-data-1.html">Ten suggestions for IAs using secondary data</a></li><li><a href="../37544/gaining-full-marks-for-a-databased-ia--1.html">Gaining full marks for a databased IA </a></li><li><a href="../19506/ia-example-marking-exercise--1.html">IA example & marking exercise </a></li><li><a href="../23929/genuine-examples-of-moderated-ia-reports-1.html">Genuine examples of moderated IA reports</a></li><li><a href="../25234/examples-of-teacher-marked-ia-reports--1.html">Examples of teacher-marked IA reports </a></li><li><a href="../37542/history-of-internal-assessment-1.html">History of Internal Assessment</a></li></ul></li><li><a href="../16598/mandatory-laboratory-components-1.html" class="father">Mandatory laboratory components</a><ul class="level-2"><li><a href="../16613/formula-of-magnesium-oxide--1.html">Formula of magnesium oxide </a></li><li><a href="../16612/determining-the-mr-of-an-unknown-gas-1.html">Determining the <i>M</i><sub>r</sub> of an unknown gas</a></li><li><a href="../16615/acid-base-titrations--1.html">Acid-base titrations </a></li><li><a href="../16616/a-green-acid-base-practical-1.html">A green acid-base practical</a></li><li><a href="../16617/analysis-of-aspirin-tablets-1.html">Analysis of aspirin tablets</a></li><li><a href="../16618/caco3-in-egg-shells-1.html">CaCO<sub>3</sub> in egg shells</a></li><li><a href="../16644/enthalpy-changes-1.html">Enthalpy changes</a></li><li><a href="../16631/reaction-rates-1.html">Reaction rates</a></li><li><a href="../16635/rate-dependent-factors-1.html">Rate-dependent factors</a></li><li><a href="../16636/determining-ea-for-a-reaction-1.html">Determining <i>E</i><sub>a</sub> for a reaction</a></li><li><a href="../16637/iodination-of-propanone-1.html">Iodination of propanone</a></li><li><a href="../18144/titrations-with-a-ph-meter-1.html">Titrations with a pH meter</a></li><li><a href="../18355/redox-titration-with-kmno4--1.html">Redox titration with KMnO<sub>4</sub> </a></li><li><a href="../16640/voltaic-cells-1.html">Voltaic cells</a></li><li><a href="../16659/3-d-molecular-modelling--1.html">3-D molecular modelling </a></li></ul></li><li><a href="../17168/other-good-practicals-1.html" class="father">Other good practicals</a><ul class="level-2"><li><a href="../17196/common-chemical-reactions-1.html">Common chemical reactions</a></li><li><a href="../227/elements-oxides-of-the-third-period--1.html">Elements & oxides of the third period </a></li><li><a href="../17239/the-halogens-1.html">The halogens</a></li><li><a href="../17162/boiling-points-of-mixtures-1.html">Boiling points of mixtures</a></li><li><a href="../17170/polarity-of-molecules-1.html">Polarity of molecules</a></li><li><a href="../18083/le-chateliers-principle--1.html">Le Chatelier's principle </a></li><li><a href="../19582/determining-kc-for-an-esterification-reaction-1.html">Determining <i>K</i><sub>c</sub> for an esterification reaction</a></li><li><a href="../18164/redox-reactions-of-vanadium--1.html">Redox reactions of vanadium </a></li><li><a href="../18351/chlorine-in-swimming-pools--1.html">Chlorine in swimming pools </a></li><li><a href="../18178/analysis-of-cuii-ions-in-solution--1.html">Analysis of Cu(II) ions in solution </a></li><li><a href="../18179/percentage-of-copper-in-brass-1.html">Percentage of copper in brass</a></li><li><a href="../18356/electrolytic-cells--1.html">Electrolytic cells </a></li><li><a href="../18598/reactions-of-organic-compounds-1.html">Reactions of organic compounds</a></li><li><a href="../18752/hydrolysis-of-halogenoalkanes-1.html">Hydrolysis of halogenoalkanes</a></li><li><a href="../18784/preparation-of-13-dinitrobenzene--1.html">Preparation of 1,3-dinitrobenzene </a></li><li><a href="../19022/determination-of-an-organic-structure-1.html">Determination of an organic structure</a></li><li><a href="../19887/preparation-of-nylon-66-1.html">Preparation of nylon 6,6</a></li><li><a href="../19343/determination-of-vitamin-c-content--1.html">Determination of vitamin C content </a></li><li><a href="../19342/hydrolysis-of-starch--1.html">Hydrolysis of starch </a></li><li><a href="../19159/preparation-purification-of-aspirin--1.html">Preparation & purification of aspirin </a></li></ul></li><li><a href="../18851/ict-in-practical-work-1.html" class="father">ICT in practical work</a><ul 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Chemistry?</a></li><li><a href="../3505/a-modern-paradigm-1.html">A modern paradigm</a></li></ul></li></ul></li><li><a href="../17783/fast-track-to-tests-questions-1.html">Fast track to tests & questions</a><ul class="level-1"><li><a href="../17784/sl-multiple-choice-tests-on-individual-topics-1.html">SL Multiple choice tests on individual topics</a></li><li><a href="../24351/sl-multiple-choice-quizzes-on-sub-topics-1.html">SL Multiple choice 'quizzes' on sub-topics</a></li><li><a href="../31519/sl-practice-paper-1-exams-1.html">SL Practice Paper 1 exams</a></li><li><a href="../17786/sl-questions-on-each-sub-topic-1.html">SL Questions on each sub-topic</a></li><li><a href="../20431/sl-paper-3-section-a-questions-1.html">SL Paper 3 Section A questions</a></li><li><a href="../17792/sl-questions-on-the-options-1.html">SL Questions on the options</a></li><li><a href="../24897/sl-quizzes-on-option-sub-topics--1.html">SL Quizzes on option sub-topics </a></li><li><a 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trends</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40928/periodic-trends-questions-1.html" title="Periodic trends questions">Periodic trends questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17041/first-row-d-block-elements--1.html" title="First-row d-block elements ">First-row d-block elements </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24442/mc-test-first-row-d-block-elements-1.html" title="MC test: First-row d-block elements">MC test: First-row d-block elements</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40929/first-row-d-block-elements-questions-1.html" title="First row d-block elements questions">First row d-block elements questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander 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"><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24470/mc-test-ionic-bonding-structure-1.html" title="MC test: Ionic bonding & structure">MC test: Ionic bonding & structure</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40897/ionic-bonding-structure-questions-1.html" title="Ionic bonding & structure questions">Ionic bonding & structure questions</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../17110/data-response-question-1.html" title="Data response question">Data response question</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24177/data-response-answers-1.html" title="Data response answers">Data response answers</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17117/covalent-bonding-1.html" title="Covalent bonding">Covalent bonding</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24471/mc-test-covalent-bonding-1.html" title="MC test: Covalent bonding">MC test: Covalent bonding</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40902/covalent-bonding-questions-1.html" title="Covalent bonding questions">Covalent bonding questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17127/covalent-structures-1-1.html" title="Covalent structures (1)">Covalent structures (1)</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24480/mc-test-covalent-structures-1-1.html" title="MC test: Covalent structures (1)">MC test: Covalent structures (1)</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40919/covalent-structures-1-questions-1.html" title="Covalent structures (1) questions">Covalent structures (1) questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17122/covalent-structures-2-1.html" title="Covalent structures (2)">Covalent structures (2)</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24481/mc-test-covalent-structures-2--1.html" title="MC test: Covalent structures (2) ">MC test: Covalent structures (2) </a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40918/covalent-structure-2-shapes-polarity-questions-1.html" title="Covalent structure (2) Shapes & polarity questions">Covalent structure (2) Shapes & polarity questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17160/intermolecular-forces-1.html" title="Intermolecular forces">Intermolecular forces</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24512/mc-test-intermolecular-forces-1.html" title="MC test: Intermolecular forces">MC test: Intermolecular forces</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40937/intermolecular-forces-questions-1.html" title="Intermolecular forces questions">Intermolecular forces questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17237/metallic-bonding-1.html" title="Metallic bonding">Metallic bonding</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24513/mc-test-metallic-bonding-1.html" title="MC test: Metallic bonding">MC test: Metallic bonding</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40939/metallic-bonding-questions-1.html" title="Metallic bonding questions">Metallic bonding questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17260/further-aspects-of-covalent-bonding--1.html" title="Further aspects of covalent bonding ">Further aspects of covalent bonding </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24553/mc-test-further-aspects-of-covalent-bonding-1.html" title="MC test: Further aspects of covalent bonding">MC test: Further aspects of covalent bonding</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40940/further-aspects-of-covalent-bonding-questions-1.html" title="Further aspects of covalent bonding questions">Further aspects of covalent bonding questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17258/hybridization-1.html" title="Hybridization">Hybridization</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24555/mc-test-hybridization-1.html" title="MC test: Hybridization">MC test: Hybridization</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40941/hybridization-questions-1.html" title="Hybridization questions">Hybridization questions</a></li></ul></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../17669/topics-5-15--1.html" title="Topics 5 & 15 ">Topics 5 & 15 </a></li><ul class="level-2 "><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17685/measuring-energy-changes-1.html" title="Measuring energy changes">Measuring energy changes</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24581/mc-test-measuring-energy-changes-1.html" title="MC test: Measuring energy changes">MC test: Measuring energy changes</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39536/measuring-energy-changes-questions--1.html" title="Measuring energy changes questions ">Measuring energy changes questions </a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17689/hesss-law--1.html" title="Hess's Law ">Hess's Law </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24582/mc-test-hesss-law-1.html" title="MC test: Hess's Law">MC test: Hess's Law</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39546/hesss-law-questions-1.html" title="Hess's Law questions">Hess's Law questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17774/bond-enthalpies-1.html" title="Bond enthalpies">Bond enthalpies</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24591/mc-test-bond-enthalpies-1.html" title="MC test: Bond enthalpies">MC test: Bond enthalpies</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39547/bond-enthalpy-questions--1.html" title="Bond enthalpy questions ">Bond enthalpy questions </a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17776/energy-cycles--1.html" title="Energy cycles ">Energy cycles </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24593/mc-test-energy-cycles-1.html" title="MC test: Energy cycles">MC test: Energy cycles</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39569/energy-cycles-questions--1.html" title="Energy cycles questions ">Energy cycles questions </a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17780/entropy-spontaneity--1.html" title="Entropy & spontaneity ">Entropy & spontaneity </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24608/mc-test-entropy-spontaneity-1.html" title="MC test: Entropy & spontaneity">MC test: Entropy & spontaneity</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39650/entropy-spontaneity-questions--1.html" title="Entropy & spontaneity questions ">Entropy & spontaneity questions </a></li></ul></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../17848/topics-6-16-1.html" title="Topics 6 & 16">Topics 6 & 16</a></li><ul class="level-2 "><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17850/collision-theory-rates-of-reaction-1.html" title="Collision theory & rates of reaction">Collision theory & rates of reaction</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24640/mc-test-collision-theory-rates-of-reaction-1.html" title="MC test: Collision theory & rates of reaction">MC test: Collision theory & rates of reaction</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40946/collision-theory-questions-1.html" title="Collision theory questions">Collision theory questions</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40947/rates-of-reaction-questions-1.html" title="Rates of reaction questions">Rates of reaction questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17870/rate-expression-reaction-mechanism-1.html" title="Rate expression & reaction mechanism">Rate expression & reaction mechanism</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24645/mc-test-rate-expression-reaction-mechanisms-1.html" title="MC test: Rate expression & reaction mechanisms">MC test: Rate expression & reaction mechanisms</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40949/rate-expression-questions-1.html" title="Rate expression questions">Rate expression questions</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40950/reaction-mechanisms-questions-1.html" title="Reaction mechanisms questions">Reaction mechanisms questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17876/activation-energy-1.html" title="Activation energy">Activation energy</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24651/mc-test-activation-energy-1.html" title="MC test: Activation energy">MC test: Activation energy</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40954/activation-energy-questions-1.html" title="Activation energy questions">Activation energy questions</a></li></ul></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../18038/topics-7-17--1.html" title="Topics 7 & 17 ">Topics 7 & 17 </a></li><ul class="level-2 "><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18040/equilibrium--1.html" title="Equilibrium ">Equilibrium </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24656/mc-test-equilibrium-1.html" title="MC test: Equilibrium">MC test: Equilibrium</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40959/equilibrium-questions-1.html" title="Equilibrium questions">Equilibrium questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18091/equilibrium-law--1.html" title="Equilibrium law ">Equilibrium law </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24660/mc-test-the-equilibrium-law-1.html" title="MC test: The equilibrium law">MC test: The equilibrium law</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40961/equilibrium-law-questions-1.html" title="Equilibrium law questions">Equilibrium law questions</a></li></ul></ul><li class="ancestor parent" style="padding-left: 14px"><i class="expander fa fa-caret-right fa-rotate-90"></i><a href="../18120/topics-8-18--1.html" title="Topics 8 & 18 ">Topics 8 & 18 </a></li><ul class="level-2 expanded"><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18124/theories-of-acids-bases--1.html" title="Theories of acids & bases ">Theories of acids & bases </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24662/mc-test-theories-of-acids-bases-1.html" title="MC test: Theories of acids & bases">MC test: Theories of acids & bases</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40963/theories-of-acids-bases-questions-1.html" title="Theories of acids & bases questions">Theories of acids & bases questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18126/properties-of-acids-bases-1.html" title="Properties of acids & bases">Properties of acids & bases</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24663/mc-test-properties-of-acids-bases--1.html" title="MC test: Properties of acids & bases ">MC test: Properties of acids & bases </a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40964/properties-of-acids-bases-questions-1.html" title="Properties of acids & bases questions">Properties of acids & bases questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18140/ph-scale-1.html" title="pH scale">pH scale</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24668/mc-test-the-ph-scale-1.html" title="MC test: The pH scale">MC test: The pH scale</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40971/ph-scale-questions-1.html" title="pH scale questions">pH scale questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18152/strong-weak-acids-bases-1.html" title="Strong & weak acids & bases">Strong & weak acids & bases</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24670/mc-test-strong-weak-acids-bases-1.html" title="MC test: Strong & weak acids & bases">MC test: Strong & weak acids & bases</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40972/strong-weak-acid-bases-questions-1.html" title="Strong & weak acid & bases questions">Strong & weak acid & bases questions</a></li></ul><li class="ancestor parent" style="padding-left: 28px"><i class="expander fa fa-caret-right fa-rotate-90"></i><a href="../18156/acid-deposition-1.html" title="Acid deposition">Acid deposition</a></li><ul class="level-3 expanded"><li class="current" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="mc-test-acid-deposition-1.html" title="MC test: Acid deposition">MC test: Acid deposition</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40983/acid-deposition-questions-1.html" title="Acid deposition questions">Acid deposition questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18160/lewis-acids-bases-1.html" title="Lewis acids & bases">Lewis acids & bases</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24710/mc-test-lewis-acids-bases-1.html" title="MC test: Lewis acids & bases">MC test: Lewis acids & bases</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40986/lewis-acids-bases-questions-1.html" title="Lewis acids & bases questions">Lewis acids & bases questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18250/acid-base-calculations-1.html" title="Acid base calculations">Acid base calculations</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24714/mc-test-calculations-involving-acids-bases--1.html" title="MC test: Calculations involving acids & bases ">MC test: Calculations involving acids & bases </a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../40988/acid-base-calculations-questions--1.html" title="Acid-base calculations questions ">Acid-base calculations questions </a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../26161/ph-titration-curves-1.html" title="pH titration curves">pH titration curves</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../26158/mc-test-ph-curves-1.html" title="MC test: pH curves">MC test: pH curves</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41000/ph-curves-questions--1.html" title="pH curves questions ">pH curves questions </a></li></ul></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../18350/topics-9-19-1.html" title="Topics 9 & 19">Topics 9 & 19</a></li><ul class="level-2 "><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18365/oxidation-reduction-1.html" title="Oxidation & reduction">Oxidation & reduction</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24725/mc-test-oxidation-reduction-1.html" title="MC test: Oxidation & reduction">MC test: Oxidation & reduction</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41033/oxidation-reduction-questions-1--1.html" title="Oxidation & reduction questions (1) ">Oxidation & reduction questions (1) </a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41034/oxidation-reduction-questions-2-1.html" title="Oxidation & reduction questions (2)">Oxidation & reduction questions (2)</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41035/oxidation-reduction-questions-3-1.html" title="Oxidation & reduction questions (3)">Oxidation & reduction questions (3)</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18383/electrochemical-cells-1.html" title="Electrochemical cells">Electrochemical cells</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24740/mc-test-electrochemical-cells-1.html" title="MC test: Electrochemical cells">MC test: Electrochemical cells</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41072/electrochemical-cells-questions--1.html" title="Electrochemical cells questions ">Electrochemical cells questions </a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18401/electrochemical-cells-ahl--1.html" title="Electrochemical cells (AHL) ">Electrochemical cells (AHL) </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24742/mc-test-electrochemical-cells-ahl-1.html" title="MC test: Electrochemical cells (AHL)">MC test: Electrochemical cells (AHL)</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41098/electrochemical-cells-1-ahl-questions-1.html" title="Electrochemical cells (1) (AHL) questions">Electrochemical cells (1) (AHL) questions</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41099/electrochemical-cells-2-ahl-questions-1.html" title="Electrochemical cells (2) (AHL) questions">Electrochemical cells (2) (AHL) questions</a></li></ul></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../18475/topics-10-20--1.html" title="Topics 10 & 20 ">Topics 10 & 20 </a></li><ul class="level-2 "><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18497/fundamentals-of-organic-chemistry--1.html" title="Fundamentals of organic chemistry ">Fundamentals of organic chemistry </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24749/mc-test-fundamentals-of-organic-chemistry-1.html" title="MC test: Fundamentals of organic chemistry">MC test: Fundamentals of organic chemistry</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41111/fundamentals-of-organic-chemistry-1-questions-1.html" title="Fundamentals of organic chemistry (1) questions">Fundamentals of organic chemistry (1) questions</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41112/fundamentals-of-organic-chemistry-2-questions-1.html" title="Fundamentals of organic chemistry (2) questions">Fundamentals of organic chemistry (2) questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18597/alkanes-alkenes-addition-polymers-1.html" title="Alkanes, alkenes & addition polymers">Alkanes, alkenes & addition polymers</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24750/mc-test-alkanes-alkenes-addition-polymers-1.html" title="MC test: Alkanes, alkenes & addition polymers">MC test: Alkanes, alkenes & addition polymers</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41121/alkanes-questions-1.html" title="Alkanes questions">Alkanes questions</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41124/alkenes-questions-1.html" title="Alkenes questions">Alkenes questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18741/alcohols--1.html" title="Alcohols ">Alcohols </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24772/mc-test-alcohols-1.html" title="MC test: Alcohols">MC test: Alcohols</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41125/alcohols-questions-1.html" title="Alcohols questions">Alcohols questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18742/halogenoalkanes-benzene--1.html" title="Halogenoalkanes & benzene ">Halogenoalkanes & benzene </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24797/mc-test-halogenoalkanes-benzene-1.html" title="MC test: Halogenoalkanes & benzene">MC test: Halogenoalkanes & benzene</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41130/halogenoalkanes-benzene-questions-1.html" title="Halogenoalkanes & benzene questions">Halogenoalkanes & benzene questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18762/nucleophilic-substitution--1.html" title="Nucleophilic substitution ">Nucleophilic substitution </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24757/mc-test-nucleophilic-substitution-1.html" title="MC test: Nucleophilic substitution">MC test: Nucleophilic substitution</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41138/nucleophilic-substitution-questions-1.html" title="Nucleophilic substitution questions">Nucleophilic substitution questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18766/electrophilic-addition--1.html" title="Electrophilic addition ">Electrophilic addition </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24805/mc-test-electrophilic-addition-electrophilic-substitution-reacti-2.html" title="MC test: Electrophilic addition & electrophilic substitution reactions">MC test: Electrophilic addition & electrophilic substitution reactions</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41148/electrophilic-addition-questions-1.html" title="Electrophilic addition questions">Electrophilic addition questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18780/electrophilic-substitution--2.html" title="Electrophilic substitution ">Electrophilic substitution </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41149/electrophilic-substitution-questions-1.html" title="Electrophilic substitution questions">Electrophilic substitution questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18793/reduction-reactions--1.html" title="Reduction reactions ">Reduction reactions </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24811/mc-test-reduction-reactions-1.html" title="MC test: Reduction reactions">MC test: Reduction reactions</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41150/reduction-reactions-questions-1.html" title="Reduction reactions questions">Reduction reactions questions</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18797/synthetic-routes--1.html" title="Synthetic routes ">Synthetic routes </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24822/mc-test-synthetic-routes-1.html" title="MC test: Synthetic routes">MC test: Synthetic routes</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41152/synthetic-routes-questions--1.html" title="Synthetic routes questions ">Synthetic routes questions </a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18844/stereoisomerism--1.html" title="Stereoisomerism ">Stereoisomerism </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24817/mc-test-stereoisomerism-1.html" title="MC test: Stereoisomerism">MC test: Stereoisomerism</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../41166/stereoisomerism-questions-1.html" title="Stereoisomerism questions">Stereoisomerism questions</a></li></ul></ul><li class=" parent" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../17285/topics-11-21--1.html" title="Topics 11 & 21 ">Topics 11 & 21 </a></li><ul class="level-2 "><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../17276/uncertainty-errors--1.html" title="Uncertainty & errors ">Uncertainty & errors </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24818/mc-test-uncertainties-errors-1.html" title="MC test: Uncertainties & errors">MC test: Uncertainties & errors</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../38869/uncertainty-error-questions--1.html" title="Uncertainty & error questions ">Uncertainty & error questions </a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../15014/graphical-techniques-1.html" title="Graphical techniques">Graphical techniques</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24819/mc-test-graphical-techniques-1.html" title="MC test: Graphical techniques">MC test: Graphical techniques</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39387/graphical-techniques-questions--1.html" title="Graphical techniques questions ">Graphical techniques questions </a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../18968/spectroscopic-identification-of-organic-compounds-1.html" title="Spectroscopic identification of organic compounds">Spectroscopic identification of organic compounds</a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24820/mc-test-spectroscopic-identification-of-organic-compounds--1.html" title="MC test: Spectroscopic identification of organic compounds ">MC test: Spectroscopic identification of organic compounds </a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39388/index-of-hydrogen-deficiency-questions-1.html" title="Index of hydrogen deficiency questions">Index of hydrogen deficiency questions</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39351/identification-from-spectra-question-1-1.html" title="Identification from spectra - Question 1">Identification from spectra - Question 1</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39353/identification-from-spectra-question-2-1.html" title="Identification from spectra - Question 2">Identification from spectra - Question 2</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39354/identification-from-spectra-question-3-1.html" title="Identification from spectra - Question 3">Identification from spectra - Question 3</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39355/identification-from-spectra-question-4-1.html" title="Identification from spectra - Question 4">Identification from spectra - Question 4</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39356/identification-from-spectra-question-5-1.html" title="Identification from spectra - Question 5">Identification from spectra - Question 5</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39357/identification-from-spectra-question-6-1.html" title="Identification from spectra - Question 6">Identification from spectra - Question 6</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39358/identification-from-spectra-question-7-1.html" title="Identification from spectra - Question 7">Identification from spectra - Question 7</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39359/identification-from-spectra-question-8-1.html" title="Identification from spectra - Question 8">Identification from spectra - Question 8</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39360/identification-from-spectra-question-9-1.html" title="Identification from spectra - Question 9">Identification from spectra - Question 9</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39361/identification-from-spectra-question-10-1.html" title="Identification from spectra - Question 10">Identification from spectra - Question 10</a></li></ul><li class=" parent" style="padding-left: 28px"><i class="expander fa fa-caret-right "></i><a href="../19027/spectroscopic-identification-of-organic-compounds-ahl--1.html" title="Spectroscopic identification of organic compounds (AHL) ">Spectroscopic identification of organic compounds (AHL) </a></li><ul class="level-3 "><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../24821/mc-test-spectroscopic-identification-of-organic-compounds-ahl-1.html" title="MC test: Spectroscopic identification of organic compounds (AHL)">MC test: Spectroscopic identification of organic compounds (AHL)</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39375/identification-from-spectra-question-11-1.html" title="Identification from spectra - Question 11">Identification from spectra - Question 11</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39376/identification-from-spectra-question-12-1.html" title="Identification from spectra - Question 12">Identification from spectra - Question 12</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39377/identification-from-spectra-question-13-1.html" title="Identification from spectra - Question 13">Identification from spectra - Question 13</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39378/identification-from-spectra-question-14-1.html" title="Identification from spectra - Question 14">Identification from spectra - Question 14</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39379/identification-from-spectra-question-15-1.html" title="Identification from spectra - Question 15">Identification from spectra - Question 15</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39380/identification-from-spectra-question-16-1.html" title="Identification from spectra - Question 16">Identification from spectra - Question 16</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39381/identification-from-spectra-question-17-1.html" title="Identification from spectra - Question 17">Identification from spectra - Question 17</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39382/identification-from-spectra-question-18-1.html" title="Identification from spectra - Question 18">Identification from spectra - Question 18</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39383/identification-from-spectra-question-19-1.html" title="Identification from spectra - Question 19">Identification from spectra - Question 19</a></li><li class="" style="padding-left: 42px"><i class="expander fa fa-caret-right "></i><a href="../39385/identification-from-spectra-question-20-1.html" title="Identification from spectra - Question 20">Identification from spectra - Question 20</a></li></ul></ul></ul><li class=" parent" style="padding-left: 0px"><i class="expander fa fa-caret-right "></i><a href="../16441/the-nature-of-science-1.html" title="The Nature of Science">The Nature of Science</a></li><ul class="level-1 "><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16450/key-terms-concepts-1.html" title="Key terms & concepts">Key terms & concepts</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../34566/nos-critical-thinking-1.html" title="NOS & Critical Thinking">NOS & Critical Thinking</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../32100/how-the-elements-were-named-1.html" title="How the elements were named">How the elements were named</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../36753/the-culture-of-chemistry-1.html" title="The Culture of Chemistry">The Culture of Chemistry</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../17333/nature-of-science-questions-1.html" title="Nature of Science questions">Nature of Science questions</a></li></ul><li class=" parent" style="padding-left: 0px"><i class="expander fa fa-caret-right "></i><a href="../16413/incorporating-im-tok-utilization-etc-1.html" title="Incorporating IM, TOK, 'Utilization' etc.">Incorporating IM, TOK, 'Utilization' etc.</a></li><ul class="level-1 "><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16414/topic-1-1.html" title="Topic 1">Topic 1</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../16916/topics-2-12-1.html" title="Topics 2 & 12">Topics 2 & 12</a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a href="../17023/topics-3-13--1.html" title="Topics 3 & 13 ">Topics 3 & 13 </a></li><li class="" style="padding-left: 14px"><i class="expander fa fa-caret-right "></i><a 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<p>Use the following 'quiz' to test your knowledge and understanding of this sub-topic. You will need access to a periodic table (Section 6 of the IB data booklet).</p>
<p>If you get an answer wrong, read through the explanation carefully to learn from your mistakes.</p>
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<div class="tib-quiz" data-quiz-id="358" data-structure="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" data-score-answers="6d4a526a457a48584f763758344a7649472f76324c53614b78524c393439595570496d5a5971374b38686f3d"><div class="exercise">
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<p>Which is <strong>not</strong> a possible cause of acid deposition?</p>
</div>
<div class="q-answer">
<p><label class="radio" data-answer="260405714079916446757f62e0feeca8"><input type="radio"><span> SO<sub>2</sub></span></label></p>
<p><label class="radio" data-answer="05f338756c3795e0fe583df923cd6a65"><input type="radio"><span> CO<sub>2</sub></span></label></p>
<p><label class="radio" data-answer="91b760eb7abfcbe0579202d4e8b904c1"><input type="radio"><span> NO<sub>2</sub></span></label></p>
<p><label class="radio" data-answer="954c8ed8efbceb3a1b9495e4a1acf3a0"><input type="radio"><span> SO<sub>3</sub></span></label></p>
</div>
<div class="q-explanation">
<p>They are all acidic gases but normal rainwater already contains dissoved carbon dioxide.</p>
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<p> </p>
<div class="exercise">
<div class="q-question">
<p>Which reaction taking place inside an internal combustion engine appreciably leads to the formation of acid deposition?</p>
</div>
<div class="q-answer">
<p><label class="radio" data-answer="45ca0ef983d39c6bbbb39d74961bc25a"><input type="radio"><span> 2SO<sub>2</sub>(g) + O<sub>2</sub>(g) → 2SO<sub>3</sub></span></label></p>
<p><label class="radio" data-answer="af497c7306a206771c930ae20230a0a2"><input type="radio"><span> 2C<sub>8</sub>H<sub>18</sub>(g) + 25O<sub>2</sub>(g) → 16CO<sub>2</sub>(g) + 18H<sub>2</sub>O</span></label></p>
<p><label class="radio" data-answer="aaf9d0be59f37b67ef5ef7ce7c8717fc"><input type="radio"><span> N<sub>2</sub>(g) + O<sub>2</sub>(g) → 2NO(g)</span></label></p>
<p><label class="radio" data-answer="d4e8f6852c5c505cc526de3e3912ac8c"><input type="radio"><span> C<sub>8</sub>H<sub>18</sub>(g) + 11O<sub>2</sub>(g) → 3CO(g) + 5CO<sub>2</sub>(g) + 9H<sub>2</sub>O</span></label></p>
</div>
<div class="q-explanation">
<p>At the high temperatures inside the internal combustion engine nitrogen and oxygen combine. The nitrogen monoxide emitted is then oxidized in the atmosphere to nitrogen dioxide which is one of the gases responsible for acid deposition. Some sulfur dioxide is produced (particularly in diesel engines) if the sulfur has not been removed from the fuel beforehand but only a tiny amount of this (<1%) is converted into sulfur trioxide inside the engine.</p>
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<p> </p>
<div class="exercise">
<div class="q-question">
<p>Which industrial processes can contribute significantly to acid deposition if prevention methods are not used?</p>
<p><strong>I. </strong>coal-fired power stations</p>
<p><strong>II.</strong> smelting of sulfide ores</p>
<p><strong>III.</strong> oil-fired power stations</p>
</div>
<div class="q-answer">
<p><label class="radio" data-answer="f66d74473eaa9d67d77a484a14d7ffce"><input type="radio"><span> <strong>I </strong>and <strong>II </strong>only</span></label></p>
<p><label class="radio" data-answer="fb11b627e4760b5e2524a7af2daae6e8"><input type="radio"><span> <strong>I </strong>and III only</span></label></p>
<p><label class="radio" data-answer="e6419af0165dac3130ce54bcb3f615f5"><input type="radio"><span> <strong>I</strong>, <strong>II</strong> and <strong>III</strong></span></label></p>
<p><label class="radio" data-answer="6e8f59490da4f8511cc6c35874c9aea1"><input type="radio"><span><strong> II </strong>and <strong>III</strong> only</span></label></p>
</div>
<div class="q-explanation">
<p>All fossil fuels contain sulfur. If it is not removed before combustion or, if the SO<sub>2</sub> formed after combustion is not removed, it releases SO<sub>2</sub> into the atmosphere, as does the smelting of sulfide ores.</p>
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<p> </p>
<div class="exercise">
<div class="q-question">
<p>Which process caused initially by nitrogen monoxide emissions from jet or automobile engines is not involved in contributing to acid deposition?</p>
</div>
<div class="q-answer">
<p><label class="radio" data-answer="2c8deced8267061c6bc789629932ccff"><input type="radio"><span> 4NO<sub>2</sub>(g) + O<sub>2</sub>(g) + 2H<sub>2</sub>O(l) → 4HNO<sub>3</sub>(aq)</span></label></p>
<p><label class="radio" data-answer="205838c2eff76ceddb0de65ef0eff98e"><input type="radio"><span> 2NO(g) + O<sub>2</sub>(g) → 2NO<sub>2</sub>(g)</span></label></p>
<p><label class="radio" data-answer="8ce5740aa44f39a33095b4d104d5f14a"><input type="radio"><span> 2NO<sub>2</sub>(g) + H<sub>2</sub>O(l) → HNO<sub>2</sub>(aq) + HNO<sub>3</sub>(aq)</span></label></p>
<p><label class="radio" data-answer="20d67593f7fe796ca358283aae4e0a78"><input type="radio"><span> NO(g) + H<sub>2</sub>O(l) → H<sub>2</sub>NO<sub>2</sub>(aq)</span></label></p>
</div>
<div class="q-explanation">
<p>NO must first be oxidized to NO<sub>2</sub> before acid deposition can occur. NO<sub>2</sub> then either reacts directly with water to form a mixture of nitric and nitrous acids or is oxidized by oxygen in the rainwater directly to nitric acid.</p>
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<p> </p>
<div class="exercise">
<div class="q-question">
<p>Which effects are directly linked to acid deposition?</p>
<p><strong>I. </strong>leaching of metal ions (such as Al<sup>3+</sup>) from the soil</p>
<p><strong>II</strong>. global warming</p>
<p><strong>III.</strong> increase in human respiratory illnesses</p>
</div>
<div class="q-answer">
<p><label class="radio" data-answer="fb11b627e4760b5e2524a7af2daae6e8"><input type="radio"><span> <strong>I</strong> and <strong>III</strong> only</span></label></p>
<p><label class="radio" data-answer="e6419af0165dac3130ce54bcb3f615f5"><input type="radio"><span> <strong>I</strong>, <strong>II</strong> and <strong>III</strong></span></label></p>
<p><label class="radio" data-answer="f66d74473eaa9d67d77a484a14d7ffce"><input type="radio"><span> <strong>I</strong> and <strong>II</strong> only</span></label></p>
<p><label class="radio" data-answer="6e8f59490da4f8511cc6c35874c9aea1"><input type="radio"><span> <strong>II</strong> and <strong>III</strong> only</span></label></p>
</div>
<div class="q-explanation">
<p>Global warming is caused by an increase in greenhouse gases, most of which (e.g. CO<sub>2</sub> and CH<sub>4</sub>) are not a cause of acid deposition.</p>
</div>
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<p> </p>
<div class="exercise">
<div class="q-question">
<p>Which is the correct ionic equation to describe the reaction that occurs when acid rain erodes marble statues?</p>
</div>
<div class="q-answer">
<p><label class="radio" data-answer="ab22f26912e85f30b8bcb2702da6eeb9"><input type="radio"><span> CaCO<sub>3</sub>(aq) + H<sub>2</sub>SO<sub>4</sub> → CaSO<sub>4</sub>(s) + CO<sub>2</sub>(g) + H<sub>2</sub>O(l)</span></label></p>
<p><label class="radio" data-answer="07201c8ae68e7b66e51f117c46d057aa"><input type="radio"><span> CO<sub>3</sub><sup>2−</sup>(aq) + 2H<sup>+</sup>(aq) → CO<sub>2</sub>(g) + H<sub>2</sub>O(l)</span></label></p>
<p><label class="radio" data-answer="fca61d7160388d9ac8ca95f29fc6df2d"><input type="radio"><span> CO<sub>3</sub><sup>2−</sup>(s) + 2H<sup>+</sup>(aq) → CO<sub>2</sub>(g) + H<sub>2</sub>O(l)</span></label></p>
<p><label class="radio" data-answer="636caae959dea01a7d90a4d444a35a68"><input type="radio"><span> HCO<sub>3</sub><sup>−</sup>(s) + H<sup>+</sup>(aq) → CO<sub>2</sub>(g) + H<sub>2</sub>O(l)</span></label></p>
</div>
<div class="q-explanation">
<p>As it is a statue, the carbonate ion must be in the solid state.</p>
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<p> </p>
<div class="exercise">
<div class="q-question">
<p>Why is rain with a pH of 6 not considered to be acid rain?</p>
</div>
<div class="q-answer">
<p><label class="radio" data-answer="783198e97d62fe821850caa72b4f28b4"><input type="radio"><span> The hydrogen ion concentration is the same as the hydroxide concentration. </span></label></p>
<p><label class="radio" data-answer="e85d41d480f6a7fe5b74dce48dca2ffc"><input type="radio"><span> Rainwater naturally contains dissolved carbon dioxide which can give a pH as low as 5.6.</span></label></p>
<p><label class="radio" data-answer="5e2f96b75596dce5236b2fc0b03321e7"><input type="radio"><span> Water with a pH between 6 and 8 is considered to be neutral.</span></label></p>
<p><label class="radio" data-answer="cf4e6dea18651af0054a947ae28e174b"><input type="radio"><span> Rainwater naturally contains dissolved oxygen which can give a pH as low as 5.</span></label></p>
</div>
<div class="q-explanation">
<p>Acid rain is defined as precipitation (rain, snow, dew or fog) having a pH below 5.6, although in practice it is usually below 5. Oxygen does dissolve in rain but this does not affect its pH.</p>
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<p> </p>
<div class="exercise">
<div class="q-question">
<p>Almost all aquatic animal life will die in a lake when the pH falls below 4. What is the hydrogen ion concentration in lake water with a pH of 4?</p>
</div>
<div class="q-answer">
<p><label class="radio" data-answer="472ab705f5334f737f8c67afe6a44e43"><input type="radio"><span> 0.00001 mol dm<sup>−3</sup></span></label></p>
<p><label class="radio" data-answer="ce7b6f2caf8d81729753dc8fa5a9d181"><input type="radio"><span> 0.0004 mol dm<sup>−3</sup></span></label></p>
<p><label class="radio" data-answer="268f8f14554f9cd07dcc665f174d3cb1"><input type="radio"><span> 4 mol dm<sup>−3</sup></span></label></p>
<p><label class="radio" data-answer="155748e2adddb27af14b7dd8b5f5fcd6"><input type="radio"><span> 10<sup>−4</sup> mol dm<sup>−3</sup></span></label></p>
</div>
<div class="q-explanation">
<p>pH = −log<sub>10</sub>[H<sup>+</sup>(aq)]. When pH = 4, [H<sup>+</sup>(aq)] = 1 x 10<sup>−4</sup> mol dm<sup>−3</sup>.</p>
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<p> </p>
<div class="exercise">
<div class="q-question">
<p>How can the pH of a lake affected by acid deposition be raised?</p>
</div>
<div class="q-answer">
<p><label class="radio" data-answer="cbe8676e19812302f8dafde1b2e3a208"><input type="radio"><span> Adding calcium sulfate, CaSO<sub>4</sub>.</span></label></p>
<p><label class="radio" data-answer="b99a93e07f9da9abc583c0c2fa720202"><input type="radio"><span> Bubbling oxygen through the water.</span></label></p>
<p><label class="radio" data-answer="fbc39eab5ef30b31460c219fab9c3a41"><input type="radio"><span> Adding slaked lime, Ca(OH)<sub>2</sub>.</span></label></p>
<p><label class="radio" data-answer="c7371a60e6db06046fba9626271ccdfe"><input type="radio"><span> Bubbling carbon dioxide through the water.</span></label></p>
</div>
<div class="q-explanation">
<p>Slaked lime is moderately soluble in water and the hydroxide ions will neutralize the hydrogen ions.</p>
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<p> </p>
<div class="exercise">
<div class="q-question">
<p>One method used in industry of removing sulfur dioxide formed when fossil fuels combust is to pass the flue gases though a slurry of lime (a mixture containing calcium hydroxide and/or calcium carbonate) - a process known as 'wet scrubbing'.</p>
<p>When sulfur dioxide reacts with the lime mixture what product is formed?</p>
</div>
<div class="q-answer">
<p><label class="radio" data-answer="38d28246e64fcf199231f380bf59ffb8"><input type="radio"><span> calcium sulfide, CaS</span></label></p>
<p><label class="radio" data-answer="0049ae6510b3bfb90445568e0d537bd7"><input type="radio"><span> calcium thiosulfate, CaS<sub>2</sub>O<sub>3</sub></span></label></p>
<p><label class="radio" data-answer="6287dffbef1174dc678846300ad3c3ae"><input type="radio"><span> calcium sulfate, CaSO<sub>4</sub></span></label></p>
<p><label class="radio" data-answer="95002e77ba08ca999bbd7923f8518fa9"><input type="radio"><span> calcium sulfite, CaSO<sub>3</sub></span></label></p>
<p> </p>
</div>
<div class="q-explanation">
<p>Essentially the reactions occurring are SO<sub>2</sub>(g) + CaCO<sub>3</sub>(s) → CaSO<sub>3</sub>(s) + CO<sub>2</sub>(g) and SO<sub>2</sub>(g) + Ca(OH)<sub>2</sub>(s) → CaSO<sub>3</sub> + H<sub>2</sub>O(l).</p>
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