Question

State what you would observe when lead nitrate solution and sodium chloride solution are mixed.

Answer 1

Reaction summary

• When lead nitrate solution $\mathrm{\left(}\mathrm{Pb}{\left({\mathrm{NO}}_3\right)}_{\mathrm{2}}\mathrm{\right)}$ is mixed with sodium chloride $\mathrm{\left(}\mathrm{NaCl}\mathrm{\right)}$ solution, the formation of a white-colored precipitate of lead chloride $\mathrm{\left(}{\mathrm{PbCl}}_{\mathrm{2}}\mathrm{\right)}$ takes place along with sodium nitrate solution $\mathrm{\left(}{\mathrm{NaNO}}_{\mathrm{3}}\mathrm{\right)}$.
• This kind of reaction is known as a double displacement reaction.

Balanced chemical equation

$\mathrm{Pb}{\left({\mathrm{NO}}_3\right)}_2\left(\mathrm{aq}\right)+2\mathrm{NaCl}\left(\mathrm{aq}\right)\to {\mathrm{PbCl}}_2\left(\mathrm{s}\right)+2{\mathrm{NaNO}}_3\left(\mathrm{aq}\right)$