Calculate the number of moles of CaCO3 (calcium carbonate, or limestone) in a 20.0 g sample of this substance.

Calculate the number of moles of CaCO3 (calcium carbonate, or limestone) in a 20.0 g sample of this substance.
A)2.00 x 103 moles
B)0.200 mole
C)0.294 mole
D)1.36 x 103 moles
E)1.20 x 103 moles


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