Understanding C4.2.1 - Reactions of metals with acids (and different types of equations)

AQA Specification Notes:
Acids react with some metals to produce salts and hydrogen.
(HT only) Students should be able to:
• explain in terms of gain or loss of electrons, that these are redox reactions
• identify which species are oxidised and which are reduced in given chemical equations.
Knowledge of reactions limited to those of magnesium, zinc and iron with hydrochloric and sulfuric acids.