Testing for metal ions
Testing for metal ions
Sodium hydroxide solution can be used to identify metal ions in solution. The metal ions react with hydroxide ions, OH−\mathrm{OH}^-OH−, to form insoluble metal hydroxides.
Step-by-step lessons on AQA GCSE Chemistry 8.3.2 Metal hydroxides. 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.