Key term for OCR GCSE Chemistry B, used in Metal extraction and reactivity.
Letters placed in brackets after a chemical formula to indicate its physical state: (s) solid, (l) liquid, (g) gas, or (aq) aqueous.
State symbols appears in OCR GCSE Chemistry B revision content for Chemicals of the natural environment, especially Metal extraction and reactivity and Equations for reactions.
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Air and water
Atmospheric changes over time • Writing balanced equations
