Chemistrymedium · Past Paper
What is the number of moles of CO2 produced when 1 mole of CaCO3 is decomposed by heat?
A0.5 mole
B1 mole
C2 moles
D10 moles
✓ Correct Answer: B — 1 mole
From the equation $CaCO_3 \rightarrow CaO + CO_2$, the molar ratio is 1:1.
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