What is corrosion?
What is corrosion?

Corrosion is the gradual destruction of a metal through chemical reactions with substances in its surroundings. It happens at the surface where the metal meets substances such as air and water.
Step-by-step lessons covering AQA GCSE Chemistry 10.3.1 Corrosion and its prevention 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.