GCSE Chemistry tutor online for AQA, Edexcel and OCR

AQA GCSE Chemistry (8462) papers

From AQA's specification at a glance, checked 6 October 2026. Both papers are set at Foundation and Higher tier. Edexcel 1CH0 also has two 1h 45m papers; OCR Gateway J248 has two 1h 45m papers per tier.

What students find hard in GCSE Chemistry

Chemistry rewards understanding over memory more than biology does. The topics that most often hold students back are quantitative chemistry (relative formula mass, moles, limiting reactants, concentration, and on Higher tier, gas volumes and atom economy), bonding and structure explanations (why diamond is hard but graphite conducts), electrolysis half equations, and balancing equations with state symbols. Students who cannot balance equations quickly lose marks across both papers, because almost every topic uses them.

Required practicals, such as making a salt, titration (separate chemistry only), temperature changes, rates of reaction and chromatography, are examined through written questions on method, variables, results and errors. A periodic table is provided in the exam, but the reasoning about groups and trends is not.

Where marks are lost

• Mole calculations without a clear method: examiners award method marks only for working they can see.
• Explaining properties with the wrong particle model, such as 'molecules' in an ionic compound.
• Missing state symbols or unbalanced equations.
• Confusing rate (how fast) with yield (how much) in equilibrium questions.
• Organic chemistry naming and functional groups, which are pure recall marks on Paper 2.
• Six-mark practical method questions written without safety, measurements or a fair-test control.

GCSE or IGCSE Chemistry?

Most Gulf British schools teach Cambridge IGCSE Chemistry (0620) or Edexcel International GCSE Chemistry. The chemistry is close to the UK GCSE, but the IGCSE courses include a practical or alternative to practical paper and different topic orders. If your child follows the UK GCSE, for example after moving from England, the tutor works from the AQA, Edexcel or OCR specification your school uses.

How one-to-one Chemistry lessons run

The tutor first finds out whether the problem is concepts, calculations or exam technique, using a short diagnostic and your child's latest test. Calculation topics are taught step by step on the shared whiteboard, then practised with a run of questions that get gradually harder until your child can do them without prompts. Explanation topics such as bonding are built with diagrams and model answers, then tested with past-paper questions marked against the board's mark scheme.

Because quantitative chemistry and bonding run through the whole course, starting in Year 10 pays off. Students who start in Year 11 can still gain a lot by fixing calculations first, as they appear on both papers.