Halide ions and precipitates
Halide ions and precipitates
A halide ion is a negatively charged ion formed by a Group 7 element. The halides tested in this topic are chloride, Cl−\text{Cl}^-Cl−, bromide, Br−\text{Br}^-Br−, and iodide, I−\text{I}^-I−.
Step-by-step lessons covering AQA GCSE Chemistry 8.3.4 Halides for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.