This page lists what we actually have for AQA GCSE Chemistry 8462. It is built from the live activities, so it is accurate on the day you read it.
The topic that is entirely arithmetic
Every science has calculations in it. Chemistry has a topic area made of nothing else.
Quantitative chemistry, section 4.3, is conservation of mass, relative formula mass, moles, the limiting reactant, concentration, percentage yield, atom economy and gas volumes. It is examined on both papers, it underpins titration on Paper 1 and the industrial chemistry on Paper 2, and it is the reliable predictor of who is getting a grade 7 rather than a 5.
Six of our forty-four activities are built for it, which is the largest block of calculation activities on any one topic anywhere on this site: Mole Mountain, the Limiting Reactant Lab, Yield and Economy, the Concentration Calculator, the Gas Volume Gauntlet, and Mass Matters for relative formula mass. Titration Master sits next to them and uses the same arithmetic on concordant titres.
So the coverage is there. The question a chemistry teacher should ask next is what those questions actually demand.
What the calculation questions ask, and what they do not
Forty-two questions across the set ask the student to type a value rather than choose one. That is the right interaction: four options on a screen always leave an elimination route, and typing closes it.
None of those forty-two prompts names the operation. A question gives a mass and an Mr and asks how many moles that is, or gives three titres and asks for the mean. Working out that this is a moles question, and which equation it needs, is the part AQA examines, and the student now has to do it.
Until October 2026 most of these prompts did name the operation ("divide the mass by the Mr to find the number of moles"). They were rewritten so the choice of calculation is left to the student.
The limit is length. Most questions are one step, where an AQA paper will often chain two or three, so use these as a first pass through a topic and AQA's own past papers for the longer calculations.
How it compares with our combined science content
This page used to say that our AQA Combined Science Trilogy activities asked the harder questions, because the chemistry set named the operation in most of its prompts. That has now been fixed here, and the Trilogy set was rewritten the same way: none of its forty typed-number prompts names the operation.
What else the set covers well
Outside the arithmetic, the strongest run is rates and energy. Need for Speed, at twenty-eight minutes, is the longest activity on this page and takes collision theory through to the effect of a catalyst. The Heat Lab, Energy In Energy Out and Catalyst Corner sit with it.
The Chemical Detective covers chromatography and the tests that go with chemical analysis, and Atmosphere Story handles the historical argument in section 4.9, which is the one part of the specification that reads like a humanities topic and is often the worst revised.
Organic chemistry, polymers, electrolysis, the Haber process and using resources are all present, one or two activities each.
Using them
The three activities embedded further down are playable here without an account.
The lists below group by classroom use, worked out from what each activity contains. For how each is meant to be run, see ready-to-run revision activities. To put several in front of one class in order, build a sprint and share one link. Everything else, by subject and board, is on the revision pages.
For the calculation practice this set does not supply, AQA's own papers in our past paper archive are free and unaltered, and their quantitative questions never say which operation to use.
What this page does not do
It does not make students choose the calculation, which is stated above in detail because it is the thing most likely to matter.
It does not cover the required practicals beyond what turns up incidentally. Chemistry's eight are examinable and are not represented here.
It is not a scheme of work. For a shape to drop these into, see how to structure a GCSE revision programme.
It does not track anything, so there is no completion list to check.