(a) Aluminium hydroxide reacts with sulphuric acid to form aluminium sulphate and water. Write a balanced equation for this reaction.
(b) Balance the following chemical equation.
MnO2 + HCl ⟶ MnCl2 + Cl2 + H2O
(a) What is a balanced chemical equation ? Why should chemical equations be balanced ?
(b) Aluminium burns is chlorine to form aluminium chloride (AlCl3). Write a balanced chemical equation for this reation.
(c) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas. Write a balanced chemical equation for this reaction.