1. Polymer Chemistry – Identifying repeat units in addition and condensation polymers and assessing sustainable polymer usage. 2. Hydrocarbon Properties – Comparing boiling points of isomers and explaining structural influences on intermolecular forces. 3. Reaction Mechanisms – Completing mechanisms for halogenation of alkenes and classifying reaction types. 4. Nitrogen Chemistry – Calculating gas volume in crisps packaging, drawing dot-cross diagrams, and comparing ammonia/ammonium ion geometry. 5. Kinetics and Rate Equations – Determining rate equations, activation energy from Arrhenius plots, and interpreting reaction order from data. 6. Organic Synthesis and Analysis – Deduction of structural formulas from IR/NMR data, ester hydrolysis comparison, and mechanisms for amine preparation.