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Chemistry · Paper 2 · Foundation + Higher · C8

Gas tests: carbon dioxide and chlorine

Key ideas1 of 3

Carbon dioxide: limewater

Bubble the gas through limewater, or shake it with limewater. Carbon dioxide turns it milky or cloudy. Limewater is an aqueous solution of calcium hydroxide.

Start with clear limewater and bubble the gas through it.

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Foundation + Higher · C8. All C8 lessons are shared by Foundation and Higher Tier.

AQA Combined Science Trilogy 8464 · 5.8.2.3–5.8.2.4. Original notes, questions and diagrams. Models are simplified, not to scale; illustrative data are labelled.