Hydrogen bonds are much weaker than ionic or covalent bonds. Still,
they hold together many molecules, including the molecules in dry
_____. They are very important in all living things and in things
associated with life, like hair.
a. alkalies g. covalent m. hydrophillic s. OH
b. arranged h. electrons n. ion t. pH
c. atom i. equation o. mixture u. physical
d. chemical j. hair p. molecule v. salt
e. compound k. hydrogen q. motion w. solution
f. cosmetics l. hydrogen bonds r. neutrons x. sour