Showing only the reacting particles
Showing only the reacting particles
An ionic equation shows only the ions and substances that change during a reaction. Ions that remain unchanged are called spectator ions and are left out.
Step-by-step lessons on Edexcel GCSE Chemistry 1.1.2 Balanced ionic equations. 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.