Why do oil and water not mix

It is combustible that burns. It is used as a fuel i. Source: www. Is Nitrogen drink dangerous for health Molecules of oil are bigger than that of water and therefore do not mix easily. On the other hand molecules of water are polar, i. Water molecules are made up of two hydrogen atoms and one oxygen atom each. Since only opposites attract, the water molecules stick to each other. Polar molecules only dissolve in polar solvents. Similarly, non-polar molecules only dissolve in non-polar solvents.

Oil is made up of non-polar molecules having negative charges, or electrons, surrounding the molecule. How does the melting point of the substances change in a mixture? What is an azeotrope? Why does an oil-and-vinegar salad dressing have two separate layers?

See all questions in Mixtures. Impact of this question views around the world. You can reuse this answer Creative Commons License. Interesting information, but only part of a water molecule is positively charged the part around the oxygen atom.

This was very insightful. I plan on doing this for my upcoming Science Fair. I like how this is explained. Simple enough for kids to understand and complex enough to get people interested in science. Well done! Do you know any people who sometimes act like oil and water? From time to time, you'll probably notice that some people just can't seem to interact and get along together.

What is it about these people that makes them act like oil and water? Do you know anyone like this? Brainstorm some ideas that might help you help them get past their differences. Can you be the dishwashing liquid or detergent that brings people together? Did you get it? Test your knowledge. What are you wondering? Wonder Words polar charge saying dissolved emulsifier attract molecule emulsion bond Take the Wonder Word Challenge. Join the Discussion. Mar 23, We're glad we could help, sherral!

Feb 3, Oct 15, Do you like Doughnuts to? Hi Shya! And, yes. We like doughnuts. Thanks for asking. Amir Apr 29, Apr 29, Hannah Mar 14, Mar 15, That's great, Hannah! Don't forget to cite your sources! Dec 17, Jul 9, Mattison Denes Jan 24,