1) CaO+2HCl=>CaCl2+H2O
2) CaCl2+Na2CO3=>CaCO3↓+2NaCl
3) CaCO3+CO2↑+H2O=>Ca(HCO3)2
4) Ca(HCO3)2=>CaCO3+CO2↑+H2O (над стрелкой t°)
5) CaCO3=>CaO+CO2↑
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1) CaO+2HCl=>CaCl2+H2O
2) CaCl2+Na2CO3=>CaCO3↓+2NaCl
3) CaCO3+CO2↑+H2O=>Ca(HCO3)2
4) Ca(HCO3)2=>CaCO3+CO2↑+H2O (над стрелкой t°)
5) CaCO3=>CaO+CO2↑