Answer: [tex]Pb^{2+}(aq)+2S^{2-}(aq)\rightarrow PbS(s)[/tex]
Explanation:
Spectator ions are defined as the ions which does not get involved in a chemical equation or they are ions which are found on both the sides of the chemical reaction present in ionic form.
The given chemical equation is:
[tex]Pb(NO_3)_2(aq)+K_2S(aq)\rightarrow PbS(s)+2KNO_3(aq)[/tex]
[tex]Pb^{2+}(aq)+2NO_3^-(aq)+2K^+(aq)+S^{2-}(aq)\rightarrow PbS(s)+2K^+(aq)+NO_3^-(aq)[/tex]
The ions which are present on both the sides of the equation are potassium and nitrate ions and hence are not involved in net ionic equation is:
Hence, the net ionic equation is [tex]Pb^{2+}(aq)+2S^{2-}(aq)\rightarrow PbS(s)[/tex]
