# Chem 1A

The following reaction occurs in aqueous acid solution: NO3– +I– →IO3– +NO2
In the balanced equation, using the smallest whole-number coefficients, what is the coefficient of NO3–?

1. You need to learn to do these by yourself. Here is a good site that will talk about all of the things you need to know to balance redox equations.
http://www.chemteam.info/Redox/Redox.html

Here is something that will help you get started. N changes from and oxidation state of +5 on the left to +4 on the right; I changes from -1 on the left to +5 on the right.

posted by DrBob222
2. If you run into trouble I will be glad to help you through. Explain exactly what you don't understand.

posted by DrBob222
3. So, after I did the half-reactions, I still only got a coefficient for NO_3- to be 1, yet in the answer key provided (this is a practice midterm question), it says the coefficient is 6....I'm confused as to how you are supposed to figure that out.

posted by Parkin

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