The music video for John Legend 's single Everybody Knows has already been viewed 9,997 times since it was posted on Tuesday, January 20, 2009. The video belongs to the music genre of R&B.
hydration (Noun). the process of providing an adequate amount of water to body tissues. hydration (Noun). the chemical reaction by which a substance (such as cement) combines with water, giving off heat to form a crystalline structure in its setting and hardening.
For example, the Greek root hydra-means that it has to do with water; can be found in the words ''hydrate'' and ''anhydrate.'' Answer and Explanation: A hydrate is any substance that has been chemically combined with water. Hydrates can be heated so that the water will boil off. The completely waterless substance left at the end of the process is an anhydrate. So a hydrate contains water, and an anhydrate does not. Learn more about this topic: