Na2o-naoh-nahso4-na2so4-so3 caco3-cao-ca(oh)2-ca(hco3)2-co2 - вопрос №15191512424332322 от Katyakat20050904 18.10.2021 06:02

Question

Химия: Na2o-naoh-nahso4-na2so4-so3 caco3-cao-ca(oh)2-ca(hco3)2-co2

Katyakat20050904 · 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