Le Chatelier's principle
Le Chatelier's principle

The position of equilibrium describes the relative amounts of reactants and products in an equilibrium mixture. An equilibrium lying to the right contains mostly products, while one lying to the left contains mostly reactants.
Step-by-step lessons on OCR GCSE Chemistry 5.3.2 Changing the position of equilibrium. 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.