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THERMODYNAMICS
Question #72019
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Question
Why is the reaction CaO(s) + CO₂(g) → CaCO₃(s) not considered a formation reaction?
A. The product is not in its standard state
B. The reaction is exothermic
C. Calcium carbonate is formed from compounds, not elements
D. The coefficient of CaCO₃ is not 2
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