C20: Energy Changes
C20-1: Exothermic Reactions
50 mins | medium
C20-2: Endothermic Reactions
50 mins | medium
C20-3: Reaction Profiles
55 mins | medium
C20-4: Bond Energy Calculations HT
60 mins | hard
C20-5: Required Practical Temperature Changes
60 mins | medium
C20-6: Cells and Batteries
50 mins | medium
C20-7: Fuel Cells
50 mins | medium
C20-8: Energy Changes Review
45 mins | medium
C21: Rate and Extent of Chemical Change
C21-1: Calculating Rate
55 mins | medium
C21-2: Factors Affecting Rate
55 mins | medium
C21-3: Collision Theory
55 mins | hard
C21-4: Catalysts
50 mins | medium
C21-5: Required Practical Rate of Reaction
60 mins | medium
C21-6: Reversible Reactions
55 mins | medium
C21-7: Equilibrium
55 mins | hard
C21-8: Changing Equilibrium Position HT
60 mins | hard
C21-9: Le Chateliers Principle HT
60 mins | hard
C21-10: Rate Assessment
50 mins | hard
C22: Organic Chemistry
C22-1: Crude Oil and Hydrocarbons
50 mins | medium
C22-2: Fractional Distillation
55 mins | medium
C22-3: Properties of Hydrocarbons
50 mins | medium
C22-4: Combustion of Fuels
55 mins | medium
C22-5: Cracking
55 mins | medium
C22-6: Alkanes
50 mins | medium
C22-7: Alkenes
50 mins | medium
C22-8: Reactions of Alkenes
55 mins | hard
C22-9: Alcohols HT
55 mins | hard
C22-10: Carboxylic Acids HT
55 mins | hard
C23: Chemical Analysis
C23-1: Pure Substances
50 mins | medium
C23-2: Formulations
45 mins | medium
C23-3: Chromatography
55 mins | medium
C23-4: Calculating Rf Values
50 mins | medium
C23-5: Required Practical Chromatography
60 mins | medium
C23-6: Testing for Gases
50 mins | medium
C23-7: Flame Tests HT
55 mins | medium
C23-8: Testing for Ions HT
55 mins | hard
C23-9: Required Practical Identifying Ions HT
60 mins | hard