AQA GCSE Chemistry (8462): complete guide to the ten topics, the two papers and the required practicals

AQA GCSE Chemistry (specification 8462) is a linear course assessed by two written papers sat at the end of the course. There is no coursework, but practical skills are assessed within the written papers. This page is the index: below is a map of the ten topics, the tier structure, the exam papers, the required practicals, and how to study each topic.

The ten AQA Chemistry topics (4.1-4.10)

The specification has ten topics. The first five are examined on Paper 1 and the last five on Paper 2.

4.1 Atomic structure and the periodic table

Atoms, elements and compounds, the development of the model of the atom, electronic structure, the periodic table, metals and non-metals, and the trends in Groups 1, 7 and 0.

4.2 Bonding, structure and the properties of matter

Chemical bonds, ionic, covalent and metallic bonding, states of matter, the structure and properties of substances, and nanoparticles.

4.3 Quantitative chemistry

Conservation of mass, the mole, reacting masses, concentration of solutions, percentage yield and atom economy.

4.4 Chemical changes

Reactivity of metals, reactions of acids, and electrolysis.

4.5 Energy changes

Exothermic and endothermic reactions, reaction profiles, and bond energy calculations.

4.6 The rate and extent of chemical change

Rate of reaction, the factors affecting rate, and reversible reactions and equilibrium.

4.7 Organic chemistry

Crude oil and hydrocarbons, fractional distillation, and alkenes and polymers.

4.8 Chemical analysis

Purity and formulations, chromatography, and tests for gases and ions.

4.9 Chemistry of the atmosphere

The evolution of the atmosphere, greenhouse gases and climate change, and atmospheric pollutants.

4.10 Using resources

Finite and renewable resources, potable water, and life cycle assessment and recycling.

Foundation and Higher tiers

The qualification is tiered. You sit both papers at one tier.

• Foundation tier targets grades 1 to 5 and covers the core content of all ten topics.
• Higher tier targets grades 4 to 9 and adds harder material such as the more demanding moles and titration calculations, the mole-based atom economy work, and some extended explanations.

Exam structure

AQA GCSE Chemistry is assessed by two written papers, both sat at the end of the course. A calculator is allowed in both.

• Paper 1 - topics 4.1 to 4.5. 1 hour 45 minutes, 100 marks, 50%.
• Paper 2 - topics 4.6 to 4.10. 1 hour 45 minutes, 100 marks, 50%.

Each paper has multiple choice, structured, closed short answer and open response questions. Around 20% of marks assess maths skills and around 15% assess practical skills.

The required practicals

There are eight required practicals, including making a soluble salt, electrolysis of solutions, measuring temperature changes, investigating rates of reaction, paper chromatography, identifying ions by tests, and analysis and purification of water. They are tested in the written papers, so learn the apparatus, variables, method and safety for each.

How to study AQA Chemistry

Chemistry rewards precise recall, confident calculation and clear extended answers.

1. Work from the specification statements. Each numbered point (e.g. 4.3.2 the mole) is a checklist; questions are written from them.
2. Master moles and quantitative chemistry early. Calculations carry many marks and reappear across topics.
3. Drill balancing and equations. Practise symbol, ionic and half-equations until they are automatic.
4. Learn the required practicals. The eight methods and their apparatus recur in both papers.
5. Practise six-mark answers and timed papers. Extended responses and full past papers build the technique examiners reward.

The ten topics, dot point by dot point

Each topic has specification-statement-level answer pages with worked exam questions and cross-links. Start with the topic overviews: the Atomic structure overview, the Bonding and structure overview, the Quantitative chemistry overview, the Chemical changes overview, the Energy changes overview, the Rate and extent overview, the Organic chemistry overview, the Chemical analysis overview, the Chemistry of the atmosphere overview and the Using resources overview.

For the official specification

AQA publishes the full specification (8462), past papers and mark schemes at aqa.org.uk. Always revise from the current specification and AQA's own past papers, because question style is board-specific.