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Chemistry, 08.10.2019 20:50 afropenguin2853

Which chemical equation describes the balanced reaction synthesizing copper and oxygen into copper oxide?

a. cu + o2 → cuo
b. 2cu + o2 → 2cuo
c. cu + h2o → cuo + h2
d. 2cu + 2h2o → 2cuo + 2h2

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