Химическая цепь: CuO--->CaO? CaCO3--->CO2--->NaCO3?

Question

Химическая цепь:

CuO--->CaO?

CaCO3--->CO2--->NaCO3?

Answer 1

CuO+Ca=CaO+Cu

CaCO₃+2HCl=CaCl₂+CO₂+H₂O

CO₂+2NaOH=Na₂CO₃+H₂O