The chemical structure of the molecule includes the distribution of atoms and chemical bonds that hold the atoms together. The 2-bromo-1- (4-chlorophenyl) propan-1-one molecule contains a total of 20 bonds. There are 12 non-H bonds, 7 multiple bonds, 2 rotational bonds (bonds), 1 double bond (double bonds), 6 aromatic bonds, 1 six-membered ring (rings) and 1 ketone (s) (aromatic). http://2bromo4chloropropiophenone.com/