This type of interaction is responsible for the high crystallinity of nylon, and it explains why hydrofluoric acid has a higher boiling point than hydrochloric acid. These interactions occur between base pairs in DNA. Ice has lower (*) density than water due to the behavior of, for 10 points, what type of bonding, a strong 
This type of interaction is responsible for the high crystallinity of nylon, and it explains why hydrofluoric acid has a higher boiling point than hydrochloric acid. These interactions occur between base pairs in DNA. Ice has lower (*) density than water due to the behavior of, for 10 points, what type of bonding, a strong dipole-dipole interaction named for element 1 on the Periodic Table?
This type of interaction is responsible for the high crystallinity of nylon, and it explains why hydrofluoric acid has a higher boiling point than hydrochloric acid.
hydrogen bonds (prompt on "dipole-dipole interaction" before mention; prompt on "bonding" before mention)