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gavruliyk4
@gavruliyk4
June 2023
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кальцій -- кальцій оксид --- кальцій гідроксид ---- кальцій карбонат --- вуглекислий газ
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Ca->CaO->Ca(OH)2->CaCO3->CO2
1) 2Ca+O2=2CaO
2) CaO+H2O=Ca(OH)2
3) Ca(OH)2+H2CO3=CaCO3+2H2O
4) CaCO3 (нагревание)=CaO+CO2
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Answers & Comments
1) 2Ca+O2=2CaO
2) CaO+H2O=Ca(OH)2
3) Ca(OH)2+H2CO3=CaCO3+2H2O
4) CaCO3 (нагревание)=CaO+CO2