nam739909 nam739909

19-12-2022
Chemistry

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cho sơ đồ phản ứng sau : Cu + O2 --- CuO a) Lập phương trình hóa học của phản ứng trên b) Tính khối lượng oxi tham gia phản ứng biết 6g đồng thì thu được 10 đồng oxit

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