AQA GCSE
Chemistry.
Paper 1 complete · Paper 2 in progress · Written by an AQA examiner
Comprehensive revision notes for AQA GCSE Chemistry (8462) and Combined Science (Trilogy / Synergy). All five Paper 1 topics (C1–C5) are complete and free to use now, with Higher Tier and Triple-only content clearly labelled so you can revise efficiently for your tier. The five Paper 2 topics are being written and added one at a time.
Paper 1 Topics
Atomic Structure and the Periodic Table · Bonding, Structure, and the Properties of Matter · Quantitative Chemistry · Chemical Changes · Energy Changes
Atomic Structure and the Periodic Table
Atoms, elements, compounds and mixtures; development of the atomic model; subatomic particles, isotopes and electronic structures; the periodic table, metals, non-metals and key groups.
View notes →Bonding, Structure, and the Properties of Matter
Ionic, covalent and metallic bonding; giant structures; properties of materials; nanoparticles.
View notes →Quantitative Chemistry
Conservation of mass, relative formula mass, moles, percentage yield, atom economy and concentration.
View notes →Chemical Changes
Reactivity series, displacement, extraction of metals, acids and salts, the pH scale, strong and weak acids, and electrolysis.
View notes →Energy Changes
Exothermic and endothermic reactions, bond energies, cells and fuel cells.
View notes →Paper 2 Topics
The Rate and Extent of Chemical Change · Organic Chemistry · Chemical Analysis · Chemistry of the Atmosphere · Using Resources
The Rate and Extent of Chemical Change
Rates of reaction, collision theory, catalysts, reversible reactions and Le Chatelier's principle.
Organic Chemistry
Crude oil, alkanes, alkenes, alcohols, carboxylic acids, polymers.
Chemical Analysis
Pure substances, mixtures, chromatography, testing for gases and ions.
Chemistry of the Atmosphere
Earth's early atmosphere, greenhouse gases, climate change and air pollution.
Using Resources
Finite and renewable resources, potable water, life cycle assessment and the Haber process.
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