Question

Give the action of dilute acids on metal hydrogen carbonates:

$\mathrm{Ca}{\left({\mathrm{HCO}}_3\right)}_2+\mathrm{HCl}\to$

Answer 1

• Metal hydrogen carbonate reacts with dilute hydrochloric acid, salt and water will form with the evolution of carbon dioxide.
• Carbon dioxide will produce with brisk effervescence.
• When calcium hydrogen carbonate reacts with hydrochloric acid, it will form calcium chloride, water, and carbon dioxide.
• The chemical equation for the given reaction is as follows:

$\underset{\mathrm{calcium}\mathrm{hydrogen}\mathrm{carbonate}}{\mathrm{Ca}{\left({\mathrm{HCO}}_3\right)}_2\left(\mathrm{s}\right)}+\underset{\mathrm{hydrochloric}\mathrm{acid}}{2\mathrm{HCl}\left(\mathrm{l}\right)}\to \underset{\mathrm{calcium}\mathrm{chloride}}{{\mathrm{CaCl}}_2\left(\mathrm{aq}\right)}+\underset{\mathrm{carbon}\mathrm{dioxide}}{2{\mathrm{CO}}_2\left(\mathrm{g}\right)}+\underset{\mathrm{water}}{2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}$