AQA GCSE Chemistry · 8462
Specification 4.2.2.2 · Paper 1
Revise: State SymbolsState symbols add this information to a chemical equation. They are written in round brackets immediately after each formula.
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GCSE Chemistry · key term
A notation written after a chemical formula to show the physical state of that substance in a chemical equation.
Used by AQA, Edexcel and OCR
Specification 4.2.2.2 · Paper 1
Revise: State SymbolsState symbols add this information to a chemical equation. They are written in round brackets immediately after each formula.
Specification 0.3, 0.4 · Paper 1, Paper 2
A symbol written after a chemical formula to show its physical state: , , or .
Revise: Balanced Chemical EquationsState symbols describe the substances but do not change the atom balance. They must match the information and conditions in the question.
A symbol in brackets showing a substance's physical state: (s), (l), (g) or (aq).
Specification C3.1f, C3.3f · Paper 1 (Foundation), Paper 3 (Higher)
A notation placed after a chemical formula to show the substance's physical state in a chemical equation.
Revise: State SymbolsA chemical equation identifies the reactants that are used and the products that form. It can also describe the physical state of every substance. This information is given by a state symbol written in round brackets immediately after its chemical formula.
A symbol written after a chemical formula to show whether the substance is solid (s), liquid (l), gas (g) or dissolved in water (aq).
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A letter or pair of letters in brackets after a chemical formula that shows the substance's physical state in a chemical equation.
Revise: State symbolsState symbols supply this information.
A symbol in brackets showing a substance's physical state: (s), (l), (g) or (aq).
Write a state symbol in round brackets immediately after every formula when the question asks for state symbols.
Choose the state from the reaction conditions and information given. A substance may have different state symbols in different situations.
State symbols do not balance an equation. Balance the formulae using coefficients, then check and add the states.
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