Question

a) Balance the following reactions:

i) Al + H2O ---------- Al2O3 + H2

ii) Al + HCl --------- AlCl3 + H2

iii) FeS2 + O2 ------- Fe2O3 + SO2

iv) ZnS + O2 ---------- ZnO +​

Answer 1

Answer:

1) 2Al+3H2O=Al203+3H2

2)2al+6hcl=2alcl3+3h2

3)4FeS2+11H2o=2Fe2O3+8SO2

4)2ZnS+3O2=2ZnO+2SO2

Answer 2

Answer:

i.) 2Al + 3H2O -------> Al2O3 + 3H2

ii. 2Al + 6HCl -------> 2AlCl3 + 3H2O

iii. 4FeS2 + 11O2 ------> 2Fe2O3 + 8SO2