Question

Complete and balance the following reactions:
(i) Mg(s) + H2SO4(aq) ⎯⎯→ ............... + ...............
(ii) Fe(s) + H2O(steam) ⎯⎯→ ............... + ...............
(iii) Na(s) + H2O(l) ⎯⎯→ ............... + ...............

Answer 1

Answer:

(1)MgSO4+H2

(2)FeO +H2

(3)Na2O+H2

Answer 2

Complete balanced chemical reaction:

(i) $Mg(s) + H_2SO_4 (aq) \longrightarrow MgSO_4 (aq) + H_2 (g)$

(ii) $Fe(s) + H_2O (steam) \longrightarrow FeO (s) + H_2 (g)$

(iii) $2Na(s) + 2H_2O (l) \longrightarrow NaOH (aq) + H_2 (g)$

Explanation:

(i) When solid magnesium and sulfuric acid react, magnesium sulfate is formed as aqueous solution with the liberation of hydrogen gas.

(ii) When iron reacts with stream, it results in the formation of iron oxide with hydrogen gas.

(iii) The sodium salt reacts with water to produce sodium hydroxide, a base, in aqueous solution.