Write the reaction equation: Ca → CaO → Ca (OH) 2 → CaCO3 → CO2 → Na2CO3
July 10, 2021 | education
| 1. Obtaining calcium oxide by the interaction of simple substances:
2Ca + O2 = 2CaO.
2. Reaction of oxide with water to form hydroxide:
CaO + H2O = Ca (OH) 2.
3. Precipitation of a white precipitate in the form of calcium carbonate when passing carbon dioxide through a hydroxide solution:
Ca (OH) 2 + CO2 = CaCO3 + H2O.
4. The decomposition reaction at a high temperature of 900-1000 ° C with the formation of quicklime:
CaCO3 = CaO + CO2.
5. Production method for producing soda:
NH3 + CO2 + H2O + NaCl = NaHCO3 + NH4Cl.
With further dehydration by heating sodium bicarbonate, carbonate is obtained:
NaHCO3 = Na2CO3 + H2O.
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