Filtration: separate an insoluble solid
Filtration: separate an insoluble solid
A mixture contains substances that are not chemically joined, so physical methods can separate them. A solute is a dissolved substance, and a solvent is the liquid that dissolves it; together they form a solution.
Step-by-step lessons on OCR GCSE Chemistry 2.1.4 Techniques for separating 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.