Reactions in both directions
Reactions in both directions
In a reversible reaction, the products can react to re-form the reactants. The symbol ⇌\rightleftharpoons⇌ shows that both the forward and backward reactions can occur.
Step-by-step lessons on Edexcel GCSE Chemistry 5.2.1 Reversible reactions and dynamic 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.