Carry out the transformation: Ca – CaO – Ca (OH) 2 – Caco3-CaCl2
| February 10, 2021 | education
1) Calcium reacts with oxygen, it turns out – calcium oxide:
2Ca + O2 → 2CaO;
2) When calcium oxide interacts with water, calcium hydroxide is formed:
CaO + H2O → Ca (OH) 2;
3) Calcium hydroxide interacts with carbonic acid and we get – calcium precipitate and water:
Ca (OH) 2 + H2CO3 → CaCO3 ↓ + H2O;
4) In the process of the exchange reaction between calcium carbonate and sodium chloride, it turns out – calcium chloride and sodium carbonate:
CaCO3 ↓ + NaCl → CaCl2 + Na2CO3 ↓.
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