Oxidizing vs Reducing Agent

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Kassidy Tran 1E
Posts: 77
Joined: Fri Sep 28, 2018 12:15 am

Oxidizing vs Reducing Agent

Postby Kassidy Tran 1E » Mon Feb 25, 2019 11:34 pm

How can you tell when an element is an oxidizing or reducing agent? For example, in the balanced redox equation:
4OH- + 2Cr3+ + 3MnO2 —> 2(CrO4)2- + 2H2O + 3Mn2+

Shubham Rai 2C
Posts: 64
Joined: Fri Sep 28, 2018 12:27 am

Re: Oxidizing vs Reducing Agent

Postby Shubham Rai 2C » Tue Feb 26, 2019 12:07 am

In this reaction, the element Cr is oxidized while Mn is reduced. Thus, Cr3+ will be the reducing agent and MnO2 will be the oxidizing agent.

ariana_apopei1K
Posts: 89
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Been upvoted: 1 time

Re: Oxidizing vs Reducing Agent

Postby ariana_apopei1K » Tue Feb 26, 2019 10:53 am

the oxidizing agent will be in the reduction half rxn, and the reducing agent will be in the oxidation half rxn

Cody Do 2F
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

Re: Oxidizing vs Reducing Agent

Postby Cody Do 2F » Tue Feb 26, 2019 12:36 pm

If you get confused, it helps to think about it like this: Much like a hiring agent at any firm is in charge of hiring other individuals, an oxidizing agent is in charge of oxidizing other elements and a reducing agent is in charge of reducing other elements. In order to oxidize other elements, the oxidizing agent must itself be reduced. Likewise, in order to reduce other elements, the reducing agent must itself be oxidized.


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