Question

Complete and balance the following equation and also state the type of reaction that is taking place:

$\mathrm{NaOH}+{\mathrm{HNO}}_3\stackrel{}{\to }$

Answer 1

Double displacement reaction:

• It is a chemical reaction in which two compounds in their aqueous solutions react to form two new compounds by the mutual exchange of their radicals.
• In general double decomposition reaction can be represented as
• $\mathrm{AB}+\mathrm{CD}\stackrel{}{\to }\mathrm{AD}+\mathrm{BC}$
• For example when sodium hydroxide$\left(\mathrm{NaOH}\right)$ reacts with nitric acid$\left({\mathrm{HNO}}_3\right)$, they undergo mutual exchange of their radicals resulting in the formation of sodium nitrate$\left({\mathrm{NaNO}}_3\right)$ and water$\left({\mathrm{H}}_2\mathrm{O}\right)$.
• $\underset{\mathrm{sodium}\mathrm{hydroxide}}{\mathrm{NaOH}\left(\mathrm{s}\right)}+\underset{\mathrm{nitric}\mathrm{cid}}{{\mathrm{HNO}}_3\left(\mathrm{aq}\right)}\stackrel{}{\to }\underset{\mathrm{sodium}\mathrm{nitrate}}{{\mathrm{NaNO}}_3\left(\mathrm{aq}\right)}+\underset{\mathrm{water}}{{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}$