Balance Nitric Acid Equation | NO3 to NO2 + H2O

[ladyvols]

Nitric acid equation!

Homework Statement

we're doing reaction predictions and were given nitric acid to balance.

Homework Equations

Nitric acid yields nitrate+water
NO3 --> NO2 + H2O but I've been up to a 36 for a constant and still can't get it..PLEASE HELP!

The Attempt at a Solution

 

[Moonbear]

Take a look at your equation as written here. Do you see something on one side that is not on the other? Where did that come from? The equation will be much easier to balance if you have everything included.