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Question #4991
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Question
Which of the following is an example of a displacement reaction?
A. 2H₂ + O₂ → 2H₂O
B. CaCO₃ → CaO + CO₂
C. AgNO₃ + NaCl → AgCl + NaNO₃
D. Fe + CuSO₄ → FeSO₄ + Cu
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