Write the reaction equation: Cacl2- CA (OH) 2- CaCo3- Can (HCO3) 2- Caco3- Cacl2
| April 18, 2021 | education
1. When heated at 425 ° C, hydroxide is formed.
CaCl2 + 2H2O = Ca (OH) 2 + 2HCl.
2. Passing carbon dioxide through lime water.
Ca (OH) 2 + CO2 = CaCO3 + H2O.
3. Carbonate and carbon dioxide dissolved in water form bicarbonate.
CaCO3 + H2O + CO2 = Ca (HCO3) 2.
4. The decomposition reaction of calcium bicarbonate is reversible to the formation reaction.
Ca (HCO3) 2 = CaCO3 + H2O + CO2.
5. Carbonate is decomposed by acid.
CaCO3 + 2HCl = CaCl2 + H2O + CO2.
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