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Determining reduction or oxidation

Posted: Sun Mar 19, 2017 2:25 pm
by Nathan Sanchez 1F
How do I know a specific reaction with an ion is more inclined to be strongly oxidizing or strongly reducing? Can I determine that just by the characteristics of the ions in question?

Re: Determining reduction or oxidation

Posted: Sun Mar 19, 2017 2:27 pm
by Jenny2G
You need to find the charge on the ion in the reactant and then see the charge change in the product. So if a reactant had cr3+ but had a charge of 2+ in the products it is a reduction because it gained one electron.

Re: Determining reduction or oxidation

Posted: Mon Mar 20, 2017 12:48 am
by Vincent Tse 2B
Typically you'll be given cell reduction potentials for redox reactions. With the values, you determine the oxidizing and reducing power of each reaction for the observed species.

For example, the more positive the cell reduction potential is, the stronger the reduction power. The less positive, the weaker the reduction power but stronger in oxidizing power.

Re: Determining reduction or oxidation

Posted: Mon Feb 05, 2018 2:21 pm
by melissa carey 1f
The ion which is reduced will gain electrons, and its oxidation number will decrease. On the other hand, the ion which is oxidized will lose electrons and its oxidation number will increase.

Re: Determining reduction or oxidation

Posted: Mon Feb 05, 2018 11:27 pm
by Wayland Leung
In class we also learned the "LEO" acronym, where loss of electrons is oxidation. That could be a easy way to memorize what oxidation is.