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### Topic: Balancing Net Ionic Equations  (Read 4536 times)

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#### Tsiih

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##### Balancing Net Ionic Equations
« on: September 27, 2009, 01:28:07 PM »
I am confused on how to balance net ionic equations. I'm wondering if it's similar to redox equations or if there's a different process to it?

Problem:
Balance the net ionic equation

MnO4- + I-  -> I2 + MnO2

(basic solution). What is the sum of the coefficients?

Choices:
a)21
b)23
c)29
d)27
e)25

Not sure I started out right for the problem...
Mn4+ + O4- + I- -> I2- + Mn4+ + O22-
O4- + I- -> I2- + O22-
« Last Edit: September 27, 2009, 01:47:28 PM by Tsiih »

#### Borek

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##### Re: Balancing Net Ionic Equations
« Reply #1 on: September 27, 2009, 02:25:12 PM »
MnO4- is a single ion, you should not split it into atoms. Treat it as a whole.

I2 is neutral.

http://www.chembuddy.com/?left=balancing-stoichiometry&right=balancing-redox
« Last Edit: September 27, 2009, 03:11:13 PM by Borek »
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

#### kimyacı

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##### Re: Balancing Net Ionic Equations
« Reply #2 on: October 02, 2009, 08:57:11 AM »

You can use to balancing this reaction the ion-electron method;