1) Copper oxide and carbon combine to produce metallic copper. Which of these is the balanced equation for this reaction?

A. Cu2O+C - > 2Cu+CO2

B. 2Cu2O+C - > 4Cu+CO2

C. 3Cu2O+C - > 3Cu+CO2

D. 2Cu2O+2C - > 2Cu+2CO2

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