AQA A-Level Chemistry Revision Notes AS / Year 1 Physical 2 Thermodynamics Rate Equations Electrochemistry Acids, Bases, & Buffers Inorganic 2 Period 3 Transition Metals Reactions of Aqueous Ions Organic 2 Isomerism Carbonyl Aromatic Amines Polymers Amino Acids, Proteins, and DNA Organic Synthesis Organic Analysis