20) When ice melts, what happens to the water molecules?

start moving faster

Explanation:

i would guess because they slow down our freeze when they get cold

"the periodic table is arranged in order of atomic number."

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."