Determine the oxidation number of the specified element. Cr in CrO4
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Originally Posted by johett Determine the oxidation number of the specified element. Cr in CrO4 well this is not math xD but I know the answer, I think that you mean: to answer this problem you must know that, the oxidation number of oxigen y -2, then we have this equation:
Last edited by Nacho; Mar 13th 2008 at 12:58 PM. Reason: I read bad the question
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