Question

What happens when you mix Silver nitrate and Potassium chromate ?

Answer 1

1. When we mix Silver nitrate (${\mathrm{AgNO}}_3$) and Potassium chromate (${\mathrm{K}}_2{\mathrm{CrO}}_4$), a displacement reaction takes place.
2. A displacement reaction is the reaction in which the more reactive element displaces the less reactive element.
3. A precipitate of Silver chromate is formed in this reaction.
4. The reaction is shown below.
   $$\begin{gathered} 2{\mathrm{AgNO}}_3\left(\mathrm{aq}\right)+{\mathrm{K}}_2{\mathrm{CrO}}_4\left(\mathrm{aq}\right)\to {\mathrm{Ag}}_2{\mathrm{CrO}}_4\left(\mathrm{s}\right)+2{\mathrm{KNO}}_3\left(\mathrm{aq}\right) \\ \mathrm{Silver}\mathrm{nitrate}\mathrm{Potassium}\mathrm{Silver}\mathrm{Potassium}\mathrm{nitrate} \\ \mathrm{chromate}\mathrm{chromate} \end{gathered}$$