Write the equations for the reactions of hydrogen with 1) iron (II) oxide 2) iron (III) oxide 3) lead (II) oxide 4) tin (IV) oxide.

1) FeO + H2 = Fe + H2O (when iron (II) oxide interacts with hydrogen, iron and water are formed);

2) Fe2O3 + H2 = 2FeO + H2O (when iron (III) oxide interacts with hydrogen, iron (II) oxide and water are formed);

3) PbO + H2 = Pb + H2O (when lead (II) oxide interacts with hydrogen, lead and water are formed);

4) SnO2 + 2H2 = Sn + 2H2O (when tin (IV) oxide reacts with hydrogen, tin and hydrogen are formed).



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