What state symbols show
What state symbols show

A state symbol is a lower-case letter in round brackets that shows the physical state of a substance in a chemical equation. It distinguishes a solid, pure liquid, gas or substance dissolved in water.
Step-by-step lessons covering AQA GCSE Chemistry 2.2.2 State symbols 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.