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Which formula represents ammonium nitrate?(1) NH4NO3 (2) NH4NO2

August 2018 NY Regents Chemistry Exam

34 Which formula represents ammonium nitrate? (1) NH4NO3

(2) NH4NO2 (3) NH4(NO3)2

(4) NH4(NO2)2

Solution: ammonium nitrate is made up of two polyatomic ions. Table E lists polyatomic ions with their formulas and names. Ammonium is NH4+ and nitrate is NO3-. +1 and -1 cancel to give us a neutral molecule.

Answer: 1

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