Write the complete molecular formula and then completes ionic equations. Then write the net ionic equation.
1.PbCl2(aq)+H2S(aq)
2.BiCl3(aq)+H2S(aq)
3.CuCl2(aq)+H2S(aq)
4.3PbS(s)+8HNO3(aq)
5.Bi2S3(s)+8HNO3(aq)
6.3CuS(s)+8HNO3(aq)
7.Pb(NO3)2(aq)+H2SO4(aq)
8.PbSO4(s)+NH4C2H3O2(aq)
9.Pb(C2H3O2)2(aq)+K2CrO4(aq)