Question

why is calcium carbonate prepared for the preparation of carbon dioxide​

Answer 1

Answer:

When carbon dioxide is passed in excess it leads to the formation of calcium hydrogen-carbonate. 2. On a large scale, it is prepared by passing carbon dioxide gas through calcium hydroxide (slaked lime). However, if carbon dioxide is passed in excess, it forms the soluble calcium hydrogen-carbonate.

Answer 2

It is almost insoluble in water. When calcium carbonate is heated at 1200 K, it decomposes to evolve Carbon dioxide. It is used in the manufacture of quick lime and as a building material in the form of marble.

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