Question

Write the balanced equation for the following reaction.

Reaction of carbon dioxide with water.

Answer 1

• Carbon dioxide when dissolved in water imparts sour taste because of the formation of carbonic acid which in turn dissociates to produce proton (${\mathbf{H}}^{\mathbf{+}}$) and bicarbonate ion(${{\mathbf{HCO}}_{\mathbf{3}}}^{\mathbf{-}}$). It eventually results in a drop of pH increasing the acidity of the solution.
• The balanced equation for this reaction is given as;

$\underset{\mathbf{Carbon}\mathbf{}\mathbf{dioxide}}{{\mathbf{CO}}_{\mathbf{2}}\mathbf{\left(}\mathbf{g}\mathbf{\right)}}\mathbf{}\mathbf{+}\underset{\mathbf{Water}}{\mathbf{}{\mathbf{H}}_{\mathbf{2}}\mathbf{O}\mathbf{(}\mathbf{l}}\mathbf{)}\mathbf{}\mathbf{\to }\mathbf{}\underset{\underset{\mathbf{(}\mathbf{weak}\mathbf{}\mathbf{acid}\mathbf{)}}{\mathbf{Carbonic}\mathbf{}\mathbf{acid}}}{{\mathbf{H}}_{\mathbf{2}}{\mathbf{CO}}_{\mathbf{3}}\mathbf{\left(}\mathbf{l}\mathbf{\right)}}$