How many hydrogen atoms are present in one molecule of ammonium acetate #NH_4C_2H_3O_2#?
Surely there are
We gots the ammonium salt of acetic acid....
We start off with SEVEN moles of hydrogen atoms, and surely we finish with SEVEN moles of hydrogen atoms. I think that this salt can be isolated.
Once an atom becomes part of a compound it is no longer an atom.