Every salt has two ions
Every salt has two ions
An unknown salt contains a positive ion, called a cation, and a negative ion, called an anion. Identifying the salt means identifying both ions, not just one.
Step-by-step lessons on Edexcel GCSE Chemistry 10.1.4 Identification of ions in unknown salts. 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.