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What mass of CaO forms by heating 100 g of CaCO3 (CaCO3 -> CaO + CO2)?
A56 g
B44 g
C28 g
D100 g
Answer & Solution
Correct answer: A. 56 g
100 g of CaCO3 is 1 mol, which gives 1 mol CaO of mass 56 g.
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