Question

Write balanced chemical equation of the following
Passing carbon dioxide through lime water

Answer 1

When carbon dioxide $\left({\mathrm{CO}}_2\right)$ is passed through lime water (calcium hydroxide) then the lime water turns milky white due to the formation of calcium bicarbonate.

The balanced chemical equation for this reaction is given below.

$\underset{\mathrm{Carbon}\mathrm{dioxide}}{\mathrm{CO}2\left(\mathrm{g}\right)}+\underset{\mathrm{Calcium}\mathrm{hydroxide}}{\mathrm{Ca}\left(\mathrm{OH}\right)2(\mathrm{aq}})\to \underset{\mathrm{Calcium}\mathrm{carbonate}}{\mathrm{CaCO}3\left(\mathrm{s}\right)}+\underset{\mathrm{Water}}{\mathrm{H}2\mathrm{O}\left(\mathrm{l}\right)}$