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GCSE Chemistry · key term
A solution in which water is the solvent.
Used by AQA, Edexcel and OCR
Specification 4.2.2.2 · Paper 1
A solution in which a substance is dissolved in water, represented by the state symbol .
Revise: State SymbolsThe state symbols provide different information: aluminium is solid, sulfuric acid and aluminium sulfate are in aqueous solution, and hydrogen is gaseous. Together, the formulae, coefficients and state symbols form a complete description of the reaction.
Specification 3.1, 3.8, 3.20, 9.33C · Paper 1, Paper 2
Revise: Classification of Elements and Compounds“Does not conduct as a solid” and “does not conduct in aqueous solution” are different observations.
A mixture formed when a substance dissolves in water; it is shown by the state symbol .
A solution in which water is the solvent; substances dissolved in it are labelled (aq).
A mixture in which a solute is dissolved in water.
Specification C3.3g, C3.3h, C3.4c, C5.1f · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Acid Strength and ConcentrationA strong acid ionises completely, or virtually completely, in aqueous solution. Its particle picture therefore contains hydrogen ions and negative ions, with almost no un-ionised acid molecules remaining.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A mixture formed when a substance is dissolved in water.
A solution made by dissolving a substance in water.
For conductivity, state whether the substance was tested as a solid, molten substance or aqueous solution. These states can give different results.
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