1.
2.
3.
4.
5.
PBr, has
O, has
NH, has
Number of atoms in a formula
CH₂Cl₂ has
(NH)₂SO, has
atoms of P combined with
atoms of O.
atoms of N and
atoms of C,
atoms of N,
atoms of H.
atoms of Br.
atoms of H and
atoms of H
atoms of Cl.
atoms of S and
atoms of O.