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4.2.3 Half equations, oxidation and reduction in electrolysis
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What is a half equation?

What is a half equation?

A half equation shows what happens to the reacting species at one electrode during electrolysis. It shows the ion, the product formed, and the electrons gained or lost.

4.2.3 Half equations, oxidation and reduction in electrolysis Lesson

  1. GCSE
  2. /Chemistry
  3. /4.2.3 Half equations, oxidation and reduction in electrolysis

Step-by-step lessons on Edexcel GCSE Chemistry 4.2.3 Half equations, oxidation and reduction in electrolysis. 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.

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