Solution of problem 14 of the collection on general che

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Solution of problem 14 of the collection on general che
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Solution of problem 14 of the collection on general che

14. Copper forms two oxides. At a certain amount of copper, when the first oxide was formed, twice as much oxygen was used as when the second oxide was formed. What is the ratio of the valence of copper in the first oxide to its valence in the second?

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