how to calculate oxidation state of copper in cuprus oxide
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Copper can have any of the above oxidation states, however +1 and +2 are the most common.
An example of a +2 oxidation state is CuO, where oxygen has an oxidation number of -2 and therefore copper has the oxidation number of +2 to balance out the molecule.
An example of a +1 oxidation state is Cu2O, where, once again, oxygen's oxidation state is -2 and so to balance out the molecule, each copper atom is +1.
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in CuO
we know
O -2
so Cu +2
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