Ответы и объяснения

2013-02-10T17:36:29+04:00

CaCO3 = CaO + CO2
CaO + H2O = Ca(OH)2
Ca(OH)2 + CO2 = CaCO3 + H2O
CaCO3 + CO2 + H2O = Ca(HCO3)2
Ca(HCO3)2 + Ca(OH)2 = 2CaCO3 + 2H2O

2013-02-10T17:41:08+04:00
CaCO3=CaO+CO CaO+H2O=Ca(OH)2 Ca(OH)2+ CO=CaCo3+H2 H2CO3+CaCo3=Ca(HCo3)2 Ca(HCO3)2+Ca(OH)2=2CaCO3(осадок) +H2O