Day Two: Activity 4

What elements make up water?
Hydrogen and Oxygen
 

Is water an ionic compound or a covalent compound?

Water is a covalent compound.

What is the shape of water?

Water is a "v" shaped molecule.

 

Why does water stick to itself?

Because the hydrogen bonds help hold it together.  Opposites attract!

Why does water not stick to or mix with oil?

Water is charged positively on the oxygen end, and negatively on the hydrogen end. Oil does not have a charge (it's neutral), so the oil does not mix with the water.

 http://wiki.answers.com/Q/Why_water_and_oil_do_not_mix#ixzz1AkVebGIi