Why Do Oil and Water Not Mix?

Answer

Oil and water don't mix due to the fact that oil is made up of non-polar molecules while water on the other hand consists of polar molecules. Although both of them are liquids, their chemical compositions are very dissimilar from each other. Oil is made of long non polar hydrocarbons meaning it experiences weak forces of attraction while water molecules have one end positively charged while the other negatively charged.
Q&A Related to "Why Do Oil and Water Not Mix"
Answer Water and oil don't mix because water is polar and the oil is nonpolar.
http://wiki.answers.com/Q/Why+does+oil+and+water+d...
Polarity and Nonpolarity of Molecules. The interaction of water and oil results from the electrical charge of water molecules. A water molecule contains two hydrogen atoms and one
http://www.ehow.com/info_7996109_oil-wont-mix-wate...
Because the molecules that compose oil have a different electrical polarity than the molecules of water.
http://answers.yahoo.com/question/index?qid=200810...
Density is a red herring. If two liquids are miscible and have different densities they will mix together to form a solution with its own density. It is because of polarity. Water
http://uk.answers.yahoo.com/question/index?qid=200...
1 Additional Answer
Oil and water don't mix because water is polar and oil is non-polar. Because of the differences in polarity, oil is repelled by water molecules.
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