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Pure substances and mixtures

Pure substances and mixtures

Diagram of filtration, crystallisation, simple distillation, and paper chromatography as physical separation methods

A pure substance contains only one element or one compound, so every particle is the same. A mixture contains two or more elements or compounds that are physically combined but not chemically bonded.

1.1.2 Mixtures Lesson

  1. GCSE
  2. /Chemistry
  3. /1.1.2 Mixtures

Step-by-step lessons covering AQA GCSE Chemistry 1.1.2 Mixtures for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.

Lessons