How to get calcium carbonate in three ways and how to isolate it from the mixture?

Calcium carbonate can be obtained in a variety of ways.

Methods of obtaining:

1. Interaction of soluble calcium salt and soluble carbonate:

CaCl2 + Na2CO3 = CaCO3 + 2 NaCl

2. Neutralization reaction (interaction of calcium hydroxide with carbonic acid):

Ca (OH) 2 + H2CO3 = CaCO3 + 2 H2O

3. Interaction of quicklime (calcium oxide) with carbon dioxide:

CaO + CO2 = CaCO3

To isolate calcium carbonate from a mixture, it is sufficient to prepare an aqueous solution and filter CaCO3, since this salt is insoluble in water.



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