Give one example, with equation, of the displacement of hydrogen by a metal from an acid.

52 Write an equation of the reaction of iron with steam. Indicate the physical states of all the reactants and products. 52 Which gas is produced when dilute hydrochloric acid is added to a reactive metal? 53 Name two metals (other than zinc and iron) which can displace hydrogen from dilute hydrochloric acid? 54 What is the action of water on

(a) sodium

(b) magnesium, and

(c) aluminium? Write equations of the chemical reactions involved.