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One electrode, one half equation

One electrode, one half equation

Electrolysis cell with positive lead ions moving to the negative cathode and negative bromide ions moving to the positive anode, with an electron-gain equation at the cathode and an electron-loss equation at the anode A half equation shows the electrons gained or lost at one electrode. In electrolysis, positive ions move to the negative cathode, while negative ions move to the positive anode.

4.3.1b Half equations in electrolysis Lesson

  1. GCSE
  2. /Chemistry
  3. /4.3.1b Half equations in electrolysis

Step-by-step lessons on AQA GCSE Chemistry 4.3.1b Half equations 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.

Lessons