Pure substances and mixtures
Pure substances and mixtures
A pure substance contains only one element or one compound, so every particle is the same. In a pure compound, each particle consists of atoms of different elements chemically bonded together.
Step-by-step lessons on AQA GCSE Chemistry 1.1.2 Mixtures. 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.