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Cobalt, a transition metal, can have an oxidation number of either 2+ or 3+. What are the two possible chemical formula for the chemical combination of cobalt with oxygen?

1 Answer

Jul 25, 2017

Well, there is #"cobalt(II) oxide"#, #CoO#.....#"cobaltous oxide"#

Explanation:

And #"cobalt(III) oxide"#, #Co_2O_3#.....#"cobaltic oxide"#.

And a mixed oxidation state oxide exists, #Co_3O_4# (note that I simply added the given formulae together, #"cobalt(II,III) oxide"#).

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