Question

What happens when Calcium is treated with water?

Answer 1

Reaction of metals with water:

• When a metal reacts with water $\left({\mathrm{H}}_2\mathrm{O}\right)$, a salt is formed along with the liberation of hydrogen gas $\left({\mathrm{H}}_2\right)$.

Reaction of Calcium with water:

• When Calcium $\left(\mathrm{Ca}\right)$ reacts with water $\left({\mathrm{H}}_2\mathrm{O}\right)$, Calcium hydroxide $\left(\mathrm{Ca}{\left(\mathrm{OH}\right)}_2\right)$ is formed along with the liberation of hydrogen gas $\left({\mathrm{H}}_2\right)$.
• The reaction is not violent in nature.
• The chemical equation can be depicted as:

$\mathrm{Ca}\left(\mathrm{s}\right)+2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)\to \mathrm{Ca}{\left(\mathrm{OH}\right)}_2\left(\mathrm{aq}\right)+{\mathrm{H}}_2\uparrow$