WJEC Chemistry for AS Level: Revision Workbook

Contents Introduction How to use this book 4 Assessment objectives 5 Preparing for the examinations 8 Common exam mistakes 10 PRACTICE QUESTIONS Unit 1: The Language of Chemistry, Structure of Matter and Simple Reactions 1.1 Formulae and equations 11 1.2: Basic ideas about atoms 17 1.3: Chemical calculations 28 1.4: Bonding 43 1.5: Solid structures 53 1.6: The periodic table 61 1.7: Simple equilibria and acid-base reactions 72 Unit 2: Energy, Rate and Chemistry of Carbon Compounds 2.1: Thermochemistry 85 2.2: Rates of reaction 93 2.3: The wider impact of chemistry 102 2.4: Organic compounds 108 2.5: Hydrocarbons 116 2.6: Halogenoalkanes 125 2.7: Alcohols and carboxylic acids 134 2.8: Instrumental analysis 143 PRACTICE EXAM PAPERS Unit 1: The Language of Chemistry, Structure of Matter and Simple Reactions 153 Unit 2: Energy, Rate and Chemistry of Carbon Compounds 162 ANSWERS Practice questions Unit 1 172 Practice questions Unit 2 182 Practice paper Unit 1 196 Practice paper Unit 2 198 | 3