12. Which one of the following is not true about the reaction of: CH3-CH3+Cl2...CH3CH2Cl+HCl? * * it is elimination reaction
it is photochemical reaction
it is chlorination reaction
it is substitution reaction

Where is the illustration?

The surface of the water droplet is held together by the attraction between molecules. in order for water to flow more easily into these small spaces, you need to decrease its surface tension. you can do this by adding soap, which is a surfactant (a material that decreases the surface tension of a liquid).