Oxidation Numbers
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Re: Oxidation Numbers
I think O2 has an oxidation number of 0 because it is in its elemental form. This is the same case for other elemental forms such as H2 or Fe.
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Re: Oxidation Numbers
Oxidation number of an atom in a neutral compound is zero when the substance contains only one element. So O2 and O3 would have an overall charge of zero.
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Re: Oxidation Numbers
The oxidation state of oxygen element such as O2, P4, S8 is zero (0).
The oxidation state of oxygen in its compounds is usually -2, except for compounds like H2O2, and Na2O2, in which the oxidation state for O is -1.
The oxidation state of oxygen in its compounds is usually -2, except for compounds like H2O2, and Na2O2, in which the oxidation state for O is -1.
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Re: Oxidation Numbers
As mentioned, the oxidation state of oxygen as a diatomic molecule (O2) is zero. However, when oxygen is in a compound, the charge varies between -1 and -2.
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