Question

What happens when sodium bicarbonate reacts with hydrochloric acid?

Answer 1

Sodium bicarbonate -

• It is an antacid that reacts with hydrochloric acid to neutralise the acid and cure acidity.
• It is used as a baking powder because the reaction releases carbon dioxide that rises in the dough and creates a fluffy texture.

Reaction -

$$\begin{gathered} {\mathrm{NaHCO}}_3\left(\mathrm{s}\right)+\mathrm{HCl}\left(\mathrm{l}\right)\to \mathrm{NaCl}\left(\mathrm{s}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)+{\mathrm{CO}}_2\left(\mathrm{g}\right) \\ (\mathrm{Sodium}(\mathrm{Hydrochloric}(\mathrm{Sodium}(\mathrm{Water})(\mathrm{Carbon} \\ \mathrm{bicarbonate})\mathrm{acid})\mathrm{chloride})\mathrm{dioxide}) \end{gathered}$$