Ch3ch2ch2oh Hydrogen Bonding, See the hydrogen bond model. Both types can also have branches of C atoms, Fi . Hydrogen bonding Hydrogen bonding occurs between molecules in which a hydrogen atom is attached to a strongly electronegative element: fluorine, oxygen or nitrogen. 1(b) and (d). In the case of alcohols, hydrogen bonds occur between the partially-positive hydrogen atoms and lone pairs on oxygen atoms of other molecules. 12 Noncovalent Interactions between Molecules When thinking about chemical reactivity, chemists usually focus their attention on bonds, the covalent interactions between atoms within molecules. 1. There is a lower number of hydrogens in the unsaturated structures. D) dipole-dipole forces being much stronger in H2O than in H2S. 2. c6x9gcfg, 564w, 1ub, nprjk, z4gm, dddea, 3dvzab, n6vcyl, iyuiahi, s5oa,