Question

Explain the following reaction with the help of a balanced chemical equation :
Magnesium reacts with hot water.

Answer 1

Potassium, sodium and calcium are very reactive. They displace hydrogen from cold water. Whereas Mg can displace hydrogen when the water is boiling or it is in the form of steam.

$M{g}_{\left(s\right)}+H_2{O}_{\left(g\right)}\to Mg{O}_{\left(s\right)}+H_2{O}_{\left(g\right)}$