AQA GCSE Chemistry Revision Notes
Free revision notes for every specification point in AQA GCSE Chemistry. Click any point below to read the full notes.
4.1 · Atomic structure and the periodic table
4.1.1 · A simple model of the atom, symbols, relative atomic mass, electronic charge and isotopes
4.1.2 · The periodic table
4.1.3 · Properties of transition metals (chemistry only)
4.2 · Bonding, structure, and the properties of matter
4.2.1 · Chemical bonds, ionic, covalent and metallic
4.2.2 · How bonding and structure are related to the properties of
4.2.3 · Structure and bonding of carbon
4.2.4 · Bulk and surface properties of matter including nanoparticles
4.3 · Quantitative chemistry
4.3.1 · Chemical measurements, conservation of mass and the quantitative interpretation of chemical equations
4.3.2 · Use of amount of substance in relation to masses of pure substances
4.3.3 · Yield and atom economy of chemical reactions (chemistry only)
4.3.4 · Using concentrations of solutions in mol/dm3 (chemistry only)
4.3.5 · Use of amount of substance in relation to volumes of gases
4.4 · Chemical changes
4.4.1 · Reactivity of metals
4.4.2 · Reactions of acids
- 4.4.2.1 — Reactions of acids with metals
- 4.4.2.2 — Neutralisation of acids and salt production
- 4.4.2.3 — Soluble salts
- RPA1 — Required Practical: Making Salts
- 4.4.2.4 — The pH scale and neutralisation
- 4.4.2.5 — Titrations (chemistry only)
- RPA2 — Required Practical: Titrations
- 4.4.2.6 — Strong and weak acids (HT only)
4.4.3 · Electrolysis
4.5 · Energy changes
4.5.1 · Exothermic and endothermic reactions
4.5.2 · Chemical cells and fuel cells (chemistry only)
4.6 · The rate and extent of chemical change
4.6.1 · Rate of reaction
4.6.2 · Reversible reactions and dynamic equilibrium
- 4.6.2.1 — Reversible reactions
- 4.6.2.2 — Energy changes and reversible reactions
- 4.6.2.3 — Equilibrium
- 4.6.2.4 — The effect of changing conditions on equilibrium (HT only)
- 4.6.2.5 — The effect of changing concentration (HT only)
- 4.6.2.6 — The effect of temperature changes on equilibrium (HT only)
- 4.6.2.7 — The effect of pressure changes on equilibrium (HT only)
4.7 · Organic chemistry
4.7.1 · Carbon compounds as fuels and feedstock
4.7.2 · Reactions of alkenes and alcohols (chemistry only)
4.7.3 · Synthetic and naturally occurring polymers (chemistry only)
4.8 · Chemical analysis
4.8.1 · Purity, formulations and chromatography
4.8.2 · Identification of common gases
4.8.3 · Identification of ions by chemical and spectroscopic means
4.9 · Chemistry of the atmosphere
4.9.1 · The composition and evolution of the Earth's atmosphere
4.9.2 · Carbon dioxide and methane as greenhouse gases
4.9.3 · Common atmospheric pollutants and their sources
4.10 · Using resources
4.10.1 · Using the Earth's resources and obtaining potable water
4.10.2 · Life cycle assessment and recycling
4.10.3 · Using materials (chemistry only)
4.10.4 · The Haber process and the use of NPK fertilisers (chemistry only)
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