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Anonymous
The main component of limestone is calcium carbonate (CaCO3). As you can see it is made of three elements not two. (Ca Calcium) (C Carbon) and (O Oxygen).
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compound is when two or more elements combine chemically
Two elements combine together by sharing electrons to form a bond.
When two or more elements combine, they form a compound. Compounds are composed of atoms of different elements bonded together in specific ratios.
mixture
compound
Compound
copper and oxygen
Yes
Limestone is a compound because it consists of two or more elements: CaCO3
molecules