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Methods of separating and purifying substances
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Pure Substances vs. Mixtures

Pure Substances vs. Mixtures

In chemistry, a pure substance contains only one element or one compound. It has a fixed chemical composition and characteristic, constant physical properties.

Methods of separating and purifying substances Lesson

  1. GCSE
  2. /Chemistry
  3. /Methods of separating and purifying substances

Step-by-step lessons covering Edexcel GCSE Chemistry Methods of separating and purifying substances 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.