Chemistry (Combined Science) · GCSE · Edexcel · Edexcel GCSE Combined Science (1SC0) — Chemistry — Foundation · Specification point · 2.9 · States of matter and mixtures · Methods of separating and purifying substances
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| Students should: | Maths skills |
|---|---|
2.9 Describe paper chromatography as the separation of mixtures of soluble substances by running a solvent (mobile phase) through the mixture on the paper (the paper contains the stationary phase), which causes the substances to move at different rates over the paper |