Oxidation Numbers

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MCracchiolo 1C
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Oxidation Numbers

Postby MCracchiolo 1C » Mon Feb 19, 2018 6:01 pm

Do elements have oxidation numbers when it's just, for example, O2 or O3?

Wayland Leung
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Re: Oxidation Numbers

Postby Wayland Leung » Mon Feb 19, 2018 7:03 pm

Yea O2 has oxidation number of 2- for each oxygen.

MCracchiolo 1C
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Re: Oxidation Numbers

Postby MCracchiolo 1C » Mon Feb 19, 2018 7:40 pm

Even if the overall charge is neutral?

aTirumalai-1I
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Re: Oxidation Numbers

Postby aTirumalai-1I » Mon Feb 19, 2018 8:13 pm

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.

AnuPanneerselvam1H
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Re: Oxidation Numbers

Postby AnuPanneerselvam1H » Mon Feb 19, 2018 9:50 pm

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.

Guangyu Li 2J
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Re: Oxidation Numbers

Postby Guangyu Li 2J » Tue Feb 20, 2018 2:32 am

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.

Jessica Nunez 1I
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Re: Oxidation Numbers

Postby Jessica Nunez 1I » Tue Feb 20, 2018 7:55 am

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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