Solubilization reactions:
Pb(NO3)2(aq) → Pb2+(aq) + 2 NO3–(aq) K2SO4(aq) → 2 K+(aq) + SO42–(aq)
Pb(NO3)2(aq) → Pb2+(aq) + 2 NO3–(aq)
K2SO4(aq) → 2 K+(aq) + SO42–(aq)
Precipitation reaction:
Pb2+(aq) + SO42–(aq) → PbSO4(s)
(Note: precipitation reactions go to completion.)
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