Half equations and electrodes
Half equations and electrodes

Step-by-step lessons covering AQA GCSE Chemistry 4.3.5 Representation of reactions at electrodes as half equations (HT only) 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.