Question

Write equations for each of the above metal which reacts with water.

Answer 1

i. Reaction of sodium with water :
\[\ce{2Na + H2O -> 2NaOH + H2}\]

ii . Reaction of calcium with water :
\[\ce{Ca + 2H2O -> Ca(OH)2 + H2}\]

iii . Reaction of magnesium with water :
\[\ce{Mg + H2O -> MgO + H2}\]

iv. Reaction of iron with water :
\[\ce{3Fe + 4H2O  -> Fe3O4 +4H2}\]