How does a hydrogen bond formthe physical and chemical properties of water? and Bond Memorial Public Library

How does a hydrogen bond formthe physical and chemical properties of water?

explain the role that hydrogen bond formation plays in some of the physical and chemical properties of water. Please help I really cannot figure this out, thank you for your time.


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Answer by thing1
Because of the large difference in electronegativity between oxygen and hydrogen, oxygen pushes the electron cloud very strongly towards its nucleus meaning it is a "very" polar bond. This causes the oxygen to become a partial negative and the hydrogen a partial positive. When you have a bunch of these water molecules next to each other, the partially positive hydrogen atoms are attracted the partially negative oxygen atoms of the other water molecules near them.

One of the chemical properties that comes to mind is water's high specific heat capacity:
These hydrogen bonds mean relatively strong intermolecular forces meaning one molecule of water is strongly attracted to another water molecule because of the aforementioned strong polarity of water. As you add heat into a water molecule, these hydrogen bonds are so strong that you have to add a lot of heat in order to tear them apart and get the molecules to move. Because temperature is the average kinetic energy, if they don't move much, they won't heat up much per unit of energy and thus have a high specific heat capacity.

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