Write a balanced equation for the reactions that occur when:
(i) Iron react with steam.
(ii) Calcium and potassium react with water.
(i) 3Fe + 4H2O(g) → Fe3O4 + H2
Iron Steam Iron(II,III) oxide
(ii) Ca(s) + 2H2O(l) → Ca(OH)2(aq) + H2(g)
Calcium hydroxide
K(s) + 2H2O(l) → 2KOH(aq) + H2(g)
Potassium hydroxide