oxidation numbers

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Jasmine W 1K
Posts: 49
Joined: Sat Sep 07, 2019 12:18 am

oxidation numbers

Postby Jasmine W 1K » Thu Feb 20, 2020 12:28 pm

In an equation, if the oxidation number of one of the elements decreases, is that a way to see if it is reduced? Same question for if the oxidation number increases, would it be oxidized?

Kassidy Ford 1I
Posts: 103
Joined: Sat Aug 17, 2019 12:16 am
Been upvoted: 1 time

Re: oxidation numbers

Postby Kassidy Ford 1I » Thu Feb 20, 2020 1:07 pm

Yes, for example if Cr^6+ changes to Cr^3+, then you know it was reduced because the half reaction would be Cr^6+ + 5e- --> Cr^3+

LNgo 1G
Posts: 100
Joined: Sat Aug 24, 2019 12:16 am

Re: oxidation numbers

Postby LNgo 1G » Thu Feb 20, 2020 4:06 pm

Yes, because when the oxidation number increases, that would mean the negatively charged electrons are being lost by oxidation and vice versa for reduction.

Amir Bayat
Posts: 115
Joined: Sat Sep 07, 2019 12:16 am

Re: oxidation numbers

Postby Amir Bayat » Thu Feb 20, 2020 4:31 pm

Yes, an increase in the oxidation number of an element can be more commonly defined as reduction.

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