Question

what is the formula for ammonium nitrate? (nh₄)₃n nh₄no₃ nh₄no₂ nh₄n

Explanation:

Ammonium nitrate is composed of ammonium ion ($\text{NH}_4^+$) and nitrate ion ($\text{NO}_3^-$). In a chemical formula, the charges of ions must balance. The ammonium ion has a +1 charge and the nitrate ion has a -1 charge. So, one ammonium ion combines with one nitrate ion.

Answer:

NH₄NO₃