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G2 Combined Science Chemistry

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SEC G2 Science K223 / K225 (2027)

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10 chapters

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Select apparatus, separate mixtures and judge what measurements actually show.

6 topics

From changes of state to counting the particles in atoms and ions.

3 topics

Explain material properties through particles, attractions and moving charges.

5 topics

Write formulae and equations, then calculate moles, mass and molar mass.

3 topics

Use ions and reaction patterns to explain acids, bases and salts.

3 topics

Identify hydrogen, oxygen and carbon dioxide with tests that tell them apart.

2 topics

Find patterns in the Periodic Table and use evidence to predict reactions.

7 topics

Recognise molecular families and connect structures, reactions, fuels and materials.

5 topics

Connect atmospheric substances to their sources, effects and possible solutions.

3 topics

Read unfamiliar evidence, make useful measurements and explain what a result can support.

7 topics