Which characteristic of water allows its molecules to form hydrogen bonds? a. Water has a high specific heat.
b. The water molecule is polar.
c. Ionic bonds hold the water molecule together.
d. Water expands as it freezes.

b. The water molecule is polar.

Explanation:

Water molecules forming hydrogen bonds with one another. The partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules. Water molecules are also attracted to other polar molecules and to ions.

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