* Polarity: Water molecules have a slightly positive charge on the hydrogen side and a slightly negative charge on the oxygen side. This uneven distribution of charge makes the molecule polar.
* Hydrogen Bonding: The positive hydrogen end of one water molecule is attracted to the negative oxygen end of another water molecule. This attractive force is called a hydrogen bond.
These hydrogen bonds are relatively weak compared to covalent bonds, but they are strong enough to hold water molecules together, giving water its unique properties like:
* High surface tension: The strong attraction between water molecules makes it difficult to break the surface, allowing insects to walk on water.
* High boiling point: Hydrogen bonds require a lot of energy to break, which is why water has a relatively high boiling point.
* Excellent solvent: Water's polarity allows it to dissolve many ionic and polar substances.
So, it's the combination of polarity and hydrogen bonding that allows water molecules to attract other molecules, giving water its unique properties and making it essential for life.