Ответ:2Ca + O2 = 2CaO
CaO + 2H2O = 2CaOH2 + O2
CaOH2 + H2CO3 = CaCO3 + H2OH2
Объяснение:
2Ca + O2 = 2CaO
Ca=>CaO=>Ca(OH)2=>CaCO3
1) 2Ca + O2 = 2CaO
2) CaO + H2O = Ca(OH)2
3) Ca(OH)2 + CO2 = CaCO3↓ + H2O
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Ответ:2Ca + O2 = 2CaO
CaO + 2H2O = 2CaOH2 + O2
CaOH2 + H2CO3 = CaCO3 + H2OH2
Объяснение:
2Ca + O2 = 2CaO
CaO + 2H2O = 2CaOH2 + O2
CaOH2 + H2CO3 = CaCO3 + H2OH2
Ca=>CaO=>Ca(OH)2=>CaCO3
1) 2Ca + O2 = 2CaO
2) CaO + H2O = Ca(OH)2
3) Ca(OH)2 + CO2 = CaCO3↓ + H2O