# Urgent for Chem!

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need help in balancing equation for NO2 + O2 -> NO + O3

• Urgent for Chem! -

I'm sorry but I have to say it IS balanced. The thing is if it wasn't balanced you would have the N's or the O's being different in number from one side or the other.

• Urgent for Chem! -

Are there 2 N's on the left side of the equation?

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