AQA GCSE Chemistry (8462)

AQA GCSE Chemistry, made to make sense.

Your tutor explains what the particles are doing, works through the calculations with you, and helps you get the 8 required practicals clear.

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Explain why sodium chloride has a high melting point.[3 marks]

This is worth 3 marks. They go for:

  • Sodium chloride has a giant ionic lattice (1 mark)
  • There are strong electrostatic forces of attraction between oppositely charged ions (1 mark)
  • A lot of energy is needed to overcome these forces (1 mark)

Examiner tip: Say “ions”, never “molecules” or “atoms”, when you’re writing about an ionic compound.

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Assessment

How AQA GCSE Chemistry is assessed

Two papers, each worth half the grade, at the same tier. Foundation tier covers grades 1–5 and Higher tier grades 4–9. A Higher student who just misses grade 4 can be awarded a 3.

Specification 8462, first examined in 2018.

Foundation or Higher tier

  • Paper 1

    Multiple choice, structured, short and open answers on topics 1–5

    Time
    1 h 45 min
    Marks
    100
    Weight
    50%
  • Paper 2

    Multiple choice, structured, short and open answers on topics 6–10, which can also draw on topics 1–3

    Time
    1 h 45 min
    Marks
    100
    Weight
    50%

Both papers are taken at the same tier, at the end of the course.

There are 8 required practicals, including making a salt, titration, electrolysis, rates of reaction and chromatography. Questions based on them are part of both papers.

From the official AQA syllabus, checked October 2026. Read the syllabus

Syllabus content

What’s on the AQA GCSE Chemistry syllabus

Paper 1

  • Atomic structure and the periodic table
  • Bonding, structure and the properties of matter
  • Quantitative chemistry
  • Chemical changes
  • Energy changes

Paper 2

  • The rate and extent of chemical change
  • Organic chemistry
  • Chemical analysis
  • Chemistry of the atmosphere
  • Using resources

Where marks are lost

Common AQA GCSE Chemistry mistakes

  • Averaging isotope masses without the abundances.

    Relative atomic mass is a weighted mean: multiply each isotope’s mass by its abundance, add them, and divide by the total abundance.

  • Explaining temperature and rate with “more collisions” only.

    Say the particles collide more often, and more of the collisions have energy equal to or greater than the activation energy.

  • Guessing the anode product in aqueous electrolysis.

    Oxygen forms at the anode, unless the solution contains halide ions; then the halogen forms.

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FAQ

AQA GCSE Chemistry questions, answered.

Yes. Your tutor sets out moles, masses and concentrations one step at a time, then gives you similar questions to practise.

Yes. Ask about the method, variables and results for any of the 8, then practise exam questions on them.

Yes. Ask a quick-revision tutor to quiz you on the tests for gases and ions, and the results you’d see.

Yes. The free plan includes 5 tutor messages and 15 minutes of calls a day. Pro and Max give you more when exams get close.

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More AQA GCSE subjects

Chemistry in other curricula