Urgent am nevoie de reacții ionice complete la:
1. 2Pb(NO3)2 + K2Cr2O7 + 2CH3COONa + H2O → 2PbCrO4 + 2KNO3 + 2NaNO3 + 2CH3COOH
2. PbCrO4 + 4NaOH → Na2(Pb(OH)4) + Na2CrO4​