Help with chapter 14 example 14.1

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Miya Eberlein 1J
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Joined: Fri Sep 25, 2015 3:00 am

Help with chapter 14 example 14.1

Postby Miya Eberlein 1J » Mon Feb 01, 2016 6:20 pm

Why does O4- have a charge of -2 in this example? I don't understand step 1 of this example. so basically how does oxygen have an oxidation number of -2?

Brenda Sanchez 1E
Posts: 1
Joined: Fri Sep 25, 2015 3:00 am

Re: Help with chapter 14 example 14.1

Postby Brenda Sanchez 1E » Mon Feb 01, 2016 8:24 pm

In general the oxidation state for oxygen is -2 and in this example its also -2 because its the oxidation state for each O. Now taking into account that there are 4 Oxygen the charge is -8. Mn has a charge of +7. Which gives the overall - charge.


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