I have to write a balanced equation for several equations. I can not figure this one out! I think I may be writing the chemical formulas incorrectly.

ammonium dichromate= nitrogen+chromium(III)oxide+water

Thanks

These are the molecular formulas. You can "google" any of them.

Ammonium Dichromate: (NH_4)_2Cr_2O_7

Nitrogen: N_2

Chromium(III) oxide: Cr_2O_3

Water: H_2O

Simply write the equation with these formulas (ammonium dichromate on the left and everything else on the right) and balance it.