Make the equation: CaCO3-CaO-Ca (OH) 2-CaCO3-Ca (NO3) 2

1) Copper (II) sulfate from the proposed substances reacts with (b) BaCl2, (d) Zn, (e) NaOH.

CuSO4 + BaCl2 → BaSO4 ↓ + CuCl2

CuSO4 + Zn → ZnSO4 + Cu

CuSO4 + 2 NaOH → Cu (OH) 2 ↓ + Na2SO4

2) CaCO3 → CaO + CO2 ↑

CaO + H2O → Ca (OH) 2

Ca (OH) 2 + CO2 → CaCO3 ↓ + H2O

CaCO3 + 2HNO3 → Ca (NO3) 2 + H2O + CO2 ↑



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