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3.2.1 Pure substances and mixtures
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Pure substances and mixtures

Pure substances and mixtures

Particle diagrams showing elements, compounds, and homogeneous and heterogeneous mixtures

In chemistry, a pure substance is a single element or a single compound, with the same fixed composition throughout.

3.2.1 Pure substances and mixtures Lesson

  1. GCSE
  2. /Chemistry
  3. /3.2.1 Pure substances and mixtures

Step-by-step lessons on Edexcel GCSE Chemistry 3.2.1 Pure substances and mixtures. Each one builds up to exam-style questions. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.

Lessons