What state symbols show
What state symbols show
A state symbol is a lower-case letter or letters in brackets that show the physical state of a substance in a chemical equation. The four state symbols are (s)(\text{s})(s) for solid, (l)(\text{l})(l) for pure liquid, (g)(\text{g})(g) for gas and (aq)(\text{aq})(aq) for dissolved in water.
Step-by-step lessons on AQA GCSE Chemistry 2.2.2 State symbols. 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.