Assessment	Time	Marks	Weight
Paper 1: inorganic and physical chemistry	1 hour 45 minutes	90	30%
Paper 2: organic and physical chemistry	1 hour 45 minutes	90	30%
Paper 3: general and practical chemistry	2 hours 30 minutes	120	40%

Three useful starting points

Calculations that make sense

Start with what the quantities mean. Set out units, convert volumes carefully and explain the mole ratio before reaching for the calculator.

Mechanisms with a reason

Track where electrons move and why. Rebuild a mechanism from the reacting species rather than memorising a picture without understanding it.

Evidence from experiments

Practise explaining the purpose of a method, interpreting a graph and judging whether the evidence supports a conclusion.

Check that you are on the UK A level

This overview covers Pearson Edexcel 9CH0. Edexcel International Advanced Level has a different unit structure. Check your entry code before choosing resources or booking support.

Frequently asked questions

Can tuition help with Paper 3?

Yes. You can ask a tutor to combine unfamiliar data, calculations and experimental reasoning in the same lesson. Bring questions you found difficult so the work addresses the reason you lost marks.

Does online tutoring replace the practical endorsement?

No. Practical endorsement arrangements belong with your school or examination centre. Tuition can support your understanding of experiments and written practical questions.

What should I bring to an introduction?

Your course code, a recent marked question and one topic you want to improve. A free 15-minute introduction lets you discuss the fit before booking lessons.

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