which of the following compound contain more than 10 atoms per formula: a)ammonium phosphate, b) aluminium carbonate, C)iron(III) cyanide,

Answer 1

ammonium phosphate is (NH4)3PO4
I see 20 atoms per molecule.

aluminum carbonate is Al2(CO3)3
I see 14 atoms per molecule.

iron cyanide is Fe3CN.
I see 5 atoms per molecule