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logon288
@logon288
July 2022
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Дуже срочно потрібно!!!
Здійснити перетворення СаСО3-->CaO-->Ca(OH)2-->CaCO3-->Ca(HCO3)2-->CaCO3
3 і 4 на йони
Дуже дуже прошу!
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HUH39I
Verified answer
1) СаСО3 --(t°)--> CaO + CO2
2) CaO + H2O = Ca(OH)2
3) Ca(OH)2 + CO2 = CaCO3 + H2O
Ca(2+) + 2OH(-) + CO2 = CaCO3 + H2O
4) CaCO3 + H2O + CO2 = Ca(HCO3)2
CaCO3 + H2O + CO2 = Ca(2+) + 2HCO3(-)
5) Ca(HCO3)2 --(t°)--> CaCO3 + H2O + CO2
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logon288
спс большое))
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Answers & Comments
Verified answer
1) СаСО3 --(t°)--> CaO + CO22) CaO + H2O = Ca(OH)2
3) Ca(OH)2 + CO2 = CaCO3 + H2O
Ca(2+) + 2OH(-) + CO2 = CaCO3 + H2O
4) CaCO3 + H2O + CO2 = Ca(HCO3)2
CaCO3 + H2O + CO2 = Ca(2+) + 2HCO3(-)
5) Ca(HCO3)2 --(t°)--> CaCO3 + H2O + CO2