Na2o-Naoh-NaHSO4-Na2SO4-So3
CaCO3-CaO-Ca(OH)2-Ca(HCO3)2-CO2
1).Na2O + H2O = 2NaOH
NaOH + H2SO4 = NaHSO4 + H2O
NaHSO4 + NaOH = Na2SO4 + H2O
SO3получить нельзя.
2).CaCO3 = CaO + CO2
CaO + H2O + Ca(OH)2
Ca(OH)2 + CO2 = Ca(HCO3)2
Ca(HCO3)2 = CaO + 2CO2 + H2O
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Verified answer
1).Na2O + H2O = 2NaOH
NaOH + H2SO4 = NaHSO4 + H2O
NaHSO4 + NaOH = Na2SO4 + H2O
SO3получить нельзя.
2).CaCO3 = CaO + CO2
CaO + H2O + Ca(OH)2
Ca(OH)2 + CO2 = Ca(HCO3)2
Ca(HCO3)2 = CaO + 2CO2 + H2O