Reactions Between Metals, Metal Compounds and Acids

Basic things to know:

Hydrochloric acid reacts with metals and metal compounds to form a metal chloride
Sulphuric acid reacts with metals and metal compounds to form a metal sulphate

And some equations:

Metal + Acid -> Salt + Hydrogen

Mg + 2HCl -> MgCl₂ + H₂

Mg + H₂SO₄ -> MgSO₄ + H₂

Metal Oxide + Acid -> Salt + Water

MgO + 2HCl -> MgCl₂ + H₂O

MgO + H₂SO₄ -> MgSO₄ + H₂O

Metal Carbonate + Acid -> Salt + Water + Carbon Dioxide

MgCO₃ + 2HCl -> MgCl₂ + H₂O + CO₂

Mg CO₃ + H₂SO₄ -> MgSO₄ + H₂O + CO₂