Public Assessment of the HKDSE Chemistry Examination … · Public Assessment of the HKDSE...
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Public Assessment of the HKDSE Chemistry Examination ......................... I Exam Strategies ................................................................................................. II 5 Fossil Fuels and Carbon Compounds ........................................................ 2 5.1 Fossil Fuels .......................................................................................... 4 5.2 Homologous Series ............................................................................ 11 5.3 Alkanes ............................................................................................. 14 5.4 Alkenes ............................................................................................. 30 5.5 The Burning of Fuels and Its Consequences ....................................... 42 Exam Practices ............................................................................................. 59 6 Microscopic World II ...................................................................... 68 6.1 Predicting the Shapes of Simple Molecules ........................................ 70 6.2 Bond Polarity ..................................................................................... 77 6.3 Intermolecular Forces -Van der Waals’ Forces ................................... 83 6.4 Intermolecular Forces - Hydrogen Bonds ........................................... 92 Exam Practices ........................................................................................... 102 7 Redox Reactions ........................................................................................ 106 7.1 Oxidation and Reduction ................................................................ 108 7.2 Electrochemical Series and Redox Equations ................................... 115 7.3 Oxidizing and Reducing Properties of Some Commonly Used Chemicals ...................................................................................... 123 Exam Practices ........................................................................................... 137
Transcript of Public Assessment of the HKDSE Chemistry Examination … · Public Assessment of the HKDSE...
Public Assessment of the HKDSE Chemistry Examination .........................I
Exam Strategies ................................................................................................. II
5 Fossil Fuels and Carbon Compounds ........................................................ 2
5.1 FossilFuels.......................................................................................... 4
5.2 HomologousSeries............................................................................ 11
5.3 Alkanes............................................................................................. 14
5.4 Alkenes............................................................................................. 30
5.5 TheBurningofFuelsandItsConsequences....................................... 42
ExamPractices............................................................................................. 59
6 Microscopic World II ...................................................................... 68 6.1 PredictingtheShapesofSimpleMolecules........................................ 70
6.2 BondPolarity..................................................................................... 77
6.3 IntermolecularForces-VanderWaals’Forces................................... 83
6.4 IntermolecularForces-HydrogenBonds........................................... 92
ExamPractices........................................................................................... 102
7 Redox Reactions ........................................................................................ 106 7.1 OxidationandReduction................................................................ 108
7.2 ElectrochemicalSeriesandRedoxEquations................................... 115
7.3 OxidizingandReducingPropertiesofSomeCommonlyUsed Chemicals...................................................................................... 123
ExamPractices........................................................................................... 137
8 Chemical Cells ........................................................................................... 142 8.1 SimpleChemicalCells..................................................................... 144
8.2 ChemicalCellsinDailyLife............................................................ 152
8.3 ReactionsinChemicalCells............................................................ 158
ExamPractices........................................................................................... 168
9 Electrolysis .................................................................................................. 176 9.1 IntroductiontoElectrolysis.............................................................. 178
9.2 IndustrialApplicationsofElectrolysis............................................... 193
ExamPractices........................................................................................... 201
10 Chemical Reactions and Energy ............................................................. 208 10.1 EnergyChangeinChemicalReactions............................................. 210
10.2 StandardEnthalpyChangeofFormation,Neutralisation,Solution andCombustion.............................................................................. 217
10.3 Hess’sLaw....................................................................................... 227
ExamPractices........................................................................................... 241
Supplementary Notes and Exam Practices(for HKDSE Combined Science (Chemistry) Examination Syllabus) ........... 247
Question Commands ........................................................................................... 285
Periodic Table ......................................................................................................... 288
