Question

10.
is made of a chemical called calcium carbonate.​

Answer 1

Answer:

In chemistry, a carbonate is a salt of carbonic acid (H 2 CO 3 ), characterized by the presence of the carbonate ion, a polyatomic ion with the formula of CO2−3. The name may also refer to a carbonate ester, an organic compound containing the carbonate group C(=O)(O–)

Explanation:

Answer 2

Answer:

It is a common substance found in rocks as the minerals calcite and aragonite (most notably as limestone, which is a type of sedimentary rock consisting mainly of calcite) and is the main component of eggshells, snail shells, seashells and pearls.

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