WACE Chemistry past exams 2020–2025, by year and topic

The rest of the syllabus

Question-level mapping for these areas is still being verified. Every official paper covering them is in the year table above.

• Unit 3 — Chemical equilibrium systems — Collision theory and the factors affecting reaction rate · Open and closed systems, reversibility and dynamic equilibrium · Le Châtelier's Principle: temperature, concentration, pressure, volume and catalysts · Equilibrium law expressions, the equilibrium constant and energy profile diagrams
• Unit 3 — Acids and bases — Brønsted-Lowry acids and bases, conjugate pairs, acid strength and Ka · Kw, [H+], [OH-] and pH calculations · Salt hydrolysis and buffer solutions · Acid-base indicators, titrations and volumetric calculations
• Unit 3 — Oxidation and reduction — Oxidation numbers, half-equations and redox equations in acidic conditions · Galvanic cells, standard electrode potentials and cell voltage · Electrolytic cells, electrorefining, electroplating and corrosion of iron
• Unit 4 — Properties and structure of organic materials — Functional groups, structural formulae and IUPAC naming · Chain, position and cis-trans isomerism · Addition, alcohol oxidation, esterification and functional-group tests · Intermolecular forces, boiling point, solubility and empirical/molecular formulae · Addition and condensation polymers: monomers and repeating units · α-Amino acids, zwitterions, peptide bonds and protein structure
• Unit 4 — Chemical synthesis — Designing a synthesis: reaction sequences, limiting reagent and percentage yield · Haber process, Contact process, biodiesel and ethanol: optimising rate and yield · Saponification, soaps and detergents, and the structure and uses of plastics