Write the empirical formula

See the explanation and answer below.

Explanation:

In chemistry, the empirical formula of a chemical compound is the simplest positive integer ratio of atoms present in a compound. The formula gives the proportions of the elements present in a compound but not the actual arrangement of atoms.

                          (Ammonium hydroxide)

                      (Iron(III) hydroxide)

             (Ammonium acetate)

           (Iron(III) Acetate)

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the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons