Chemistry of Water

1) Describe how water molecules are bonded:

- Water molecules are bonded by a covalent chemical bond. Each hydrogen nucleus is bound to the central oxygen atom by a pair of shared electrons.

2) Describe how the positive and negative charges of water are distributed:

- The partially-positive atom on one water molecule is electro statically attracted to the partially-negative oxygen on a close molecule. This is called hydrogen bonding.

3) Describe the chemistry of water that allows an insect to walk on water:

- There is no net force on a molecule surrounded by neighboring molecules in the bulk of the liquid. However, a surface molecule experiences forces sideways and downwards. The difference between the two forces gives the liquid its surface tension.

4) What is unique about water and it's density?

- Water is less dense as a solid than a liquid. Normally, it's reversed and water has a maximum quality of 4 degrees Celsius. Ice is less dense than water.