Page 3 - Q & A STPM 2022 Chemistry

TERM 2

CHAPTER Chemical Energetics 183
7 7.1 Enthalpy Changes of Reaction, ΔH 183
188
7.2 Hess’ s Law
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7.3 Born-Haber Cycle 195
7.4 The Solubility of Solids in Liquids 202

CHAPTER Electrochemistry 206
8 8.1 Half-cell and Redox Equations 206
208
8.2 Standard Electrode Potential
8.3 Non-standard Cell Potentials 218
8.4 Fuel Cells 221
8.5 Electrolysis 222
8.6 Applications of Electrochemistry 233

CHAPTER Periodic Table: Periodicity 236
9 9.1 Physical Properties of Elements of Period 2 and Period 3 236
9.2 Reactions of Period 3 Elements with Oxygen and Water
240
9.3 Acidic and Basic Properties of Oxides and Hydrolysis of Oxides 243

CHAPTER Group 2 252
10 10.1 Selected Group 2 Elements and Their Compounds 252
10.2 Anomalous Behaviour of Beryllium
262
10.3 Uses of Group 2 Compounds 269

CHAPTER Group 14 271
11 11.1 Physical Properties of Group 14 Elements 271
274
11.2 Tetrachlorides and Oxides of Group 14 Elements
11.3 Relative Stability of +2 and +4 Oxidation States of Group 14
Elements 282
11.4 Silicon, Silicone and Silicate 287
11.5 Tin Alloys 293

CHAPTER Group 17 295
12 12.1 Physical Properties of Selected Group 17 Elements 295
12.2 Reactions of Selected Group 17 Elements
298
12.3 Reactions of Selected Halide Ions 305
12.4 Industrial Applications of Halogens and Their Compounds 309

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0iv Con STPM Q&A Chem T1.indd 6 4/19/19 5:14 PM