Write the balanced equation for the following chemical reaction: 1. Hydrogen reacts with chlorine to give hydrogen chloride. * 2.Sodium reacts with water to give sodium hydroxide and hydrogen. * 3. Barium chloride and aluminium sulphate gives barium sulphate and aluminium chloride. * 4. potassium metal reacts with water to give potassium hydroxide and hydrogen gas 5. 5.Hydrogen sulphide gas burns in air (combining with oxygen ) to give water and sulphur dioxide. *