Осуществите превращения:
1) C-->Co2-->CaCo--3>Ca(HCo3)2-->CaCo3
2)CO2-->Na2CO3-->CaCo3-->CO2-->Co
1) C-->Co2-->CaCo--3>Ca(HCo3)2-->CaCo3
2)CO2-->Na2CO3-->CaCo3-->CO2-->Co
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Answers & Comments
Ca(OH)2+CO2=CaCO3+H2O
CaCO3+H2O+CO2=Ca(HCO3)2
Ca(HCO3)2(t°)⇒CaCO3+H2O+CO2
2.Na2O+CO2=Na2CO3
Na2CO3+CaCl2=CaCO3+2NaCl
CaCO3(t°)⇒CaO+CO2
CO2+C=2CO