Question

Write and balance the following chemical reactions:
1. Reaction between magnesium and sulphuric acid
2. When iron reacts with water.
3. When carbon monoxide reacts with water.

Answer 1

1. Mg + H2SO4 gives MgSO4 + H2
2. 3Fe + 4H20(steam) gives Fe304 + 4H2 
3. CO + H20 gives CO2 + H2

Answer 2

1) When magnesium(mg) reacts with sulphuric acid(H2SO4), Magnesium sulphate(MgSO4)  and hydrogen(H2) gas liberated.
Mg + H2SO4 ---> MgSO4 + H2

2)When iron(Fe) reacts with water(H2O), its gives Iron Oxide (FeO) and hydrogen gas is liberated.
Fe + H2O ---> FeO + H2

3)When carbonmonoxide(CO) reacts with water(H2O), Carbondioxide and hydrogen gas is liberated (water gas).
CO + H2O ---> CO2 + H2

hope helped u.. :))