Question

what gives water most of its unique properties?
a the oxygen in its molecular structure
b the polarity between the oxygen and hydrogens
c hydrogen bonding between water molecules
d its high boiling point

Explanation:

Hydrogen bonding between water molecules is responsible for many of water's unique properties such as high specific heat, surface tension, and its ability to dissolve many substances. The polarity (option b) is a factor in hydrogen bonding but hydrogen bonding itself (option c) is the more direct cause. Oxygen in the molecule (option a) is part of the structure but not the main reason for the unique properties. High boiling point (option d) is a result of hydrogen bonding, not the cause.

Answer:

C. hydrogen bonding between water molecules