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Calcium carbonate is also known as limestone. It is made up of the elements _______. A. calcium and carbon. B. calcium and hydrogen. C. calcium, carbon and oxygen. D. calcium, hydrogen and oxygen.
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Calcium carbonate is also known as limestone. It is made up of the elements _______.

A. calcium and carbon.
B. calcium and hydrogen.
C. calcium, carbon and oxygen. D. calcium, hydrogen and oxygen.

User Donald Miner
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1 Answer

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Calcium=Ca2+
Carbonate=(CO3)2-

Therefore it is composed of Calcium, Carbon and Oxygen.
User Adrian Regan
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