Add the reaction schemes and write the equations in ionic form: a) Na2CO3 + Ca (OH) 2 → b) Pb (NO3) 2 + H2SO4 →

univerkov | March 14, 2021 | education

1. Na2CO3 + Ca (OH) 2 = 2NaOH + CaCO3 ↓.

2Na + + CO32- + Ca2 + + 2OH- = 2Na ++ 2OH- + CaCO3 ↓.

Ca2 + + CO32- = CaCO3 ↓.

2. Pb (NO3) 2 + H2SO4 = PbSO4 ↓ + 2HNO3.

Pb2 + + 2NO3- + 2H- + SO42- = 2H- + 2NO3- + PbSO4 ↓.

Pb2 + + SO42- = PbSO4 ↓.

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