
When you combine a solution of K2SO4 with a solution of Pb(NO3)2 a solid is formed. Chemical formula for this solid is PbSO4 .
The reaction for this process is next:
K2SO4+Pb(NO3)2⇒PbSO4↓+2KNO3
Lead(II) sulfate (PbSO4) is a white crystal or powder.