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For CaCO₃ → CaO + CO₂, how many moles of CO₂ form ideally from 3 mol CaCO₃ with other reactants in excess?

By /

A) 3 mol

B) 4 mol

C) 6 mol

D) 1.5 mol

Answer: A

Explanation: The balanced equation gives a 1:1 mole ratio between CaCO₃ and CO₂. Multiply 3 mol by 1/1 to get 3 mol of CO₂.

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