Question

Give your observation along with equation:

When silver nitrate is added to sodium chloride

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 a general double decomposition, the reaction can be represented as
• $\mathrm{AB}+\mathrm{CD}\stackrel{}{\to }\mathrm{AD}+\mathrm{BC}$
• For example when sodium chloride ($\mathrm{NaCl}$) reacts with sodium nitrate (${\mathrm{AgNO}}_3$), they undergo a mutual exchange of their radicals.
• $\underset{\mathrm{sodium}\mathrm{chloride}}{\mathrm{NaCl}\left(\mathrm{aq}\right)}+\underset{\mathrm{silver}\mathrm{nitrate}}{{\mathrm{AgNO}}_3\left(\mathrm{aq}\right)}\stackrel{}{\to }\underset{\mathrm{silver}\mathrm{chloride}}{\mathrm{AgCl}\left(\mathrm{s}\right)}\downarrow +\underset{\mathrm{sodium}\mathrm{nitrate}}{{\mathrm{NaNO}}_3\left(\mathrm{aq}\right)}$
• The above reaction is also a precipitation reaction.