Question

Write balanced chemical equation for the reaction of calcium with cold water.

Answer 1

Balancing of chemical equations:

Balancing of chemical equations may be defined as - “The process of making the number of different types of elements, on both sides of the equation, equal.”

In a balanced equation, the number of atoms of different elements on both sides of the equation is always equal.

The balancing of a chemical equation is essential or necessary to fulfill the requirement of the “Law of conservation of mass”.

The balanced chemical equation for the reaction of calcium with cold water is as follows:

$$\begin{gathered} \mathrm{Ca}+2{\mathrm{H}}_2\mathrm{O}\to \mathrm{Ca}{\left(\mathrm{OH}\right)}_2+{\mathrm{H}}_2 \\ \left(\mathrm{Calcium}\right)\left(\mathrm{Cold}\mathrm{water}\right)\left(\mathrm{Calcium}\mathrm{hydroxide}\right)\left(\mathrm{Hydrogen}\mathrm{gas}\right) \end{gathered}$$