Explain the relationship between the polar nature of water and its ability to form hydrogen bonds.

Question

Explain the relationship between the polar nature of water and its ability to form hydrogen bonds.

Answer 1

Water is a polar molecule because part of it has a slight positive charge, and part has a slight negative charge.  The oxygen atom has a higher affinity for electrons (making it slightly negative)  which pulls electron density away from the hydrogen atoms causing them to be slightly negative.

A hydrogen bond is dipole-dipole (i.e. a small difference in charge)  force between a hydrogen atom and any other atom/molecule that is slightly negatively charged.  This is what happens between water molecules.  The oxygen atom in water molecule is the slightly negative charge which causes hydrogen atoms of neighboring water molecules to hydrogen-bind to it.  

Answer 2

It bonds from the heat sources around them and the Salt in the oceans