Объяснение:
Pb(NO3)2 + CaI2 = Ca(NO3)2 + PbI2↓
Pb²+ + 2NO3- + Ca²+ + 2I-= Ca²+ + 2NO3- + PbI2↓
Pb²+ + 2I-= PbI2↓
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Объяснение:
Pb(NO3)2 + CaI2 = Ca(NO3)2 + PbI2↓
Pb²+ + 2NO3- + Ca²+ + 2I-= Ca²+ + 2NO3- + PbI2↓
Pb²+ + 2I-= PbI2↓