Chem 1A
posted by Parkin on .
The following reaction occurs in aqueous acid solution: NO3– +I– →IO3– +NO2
In the balanced equation, using the smallest wholenumber coefficients, what is the coefficient of NO3–?

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

So, after I did the halfreactions, 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.