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.
Definition: Water of hydration is water that is stoichiometrically bound into a crystal. Crystal salts containing water of hydration are called hydrates.Also Known As: water of crystallization, crystallization water. Examples: Commercial root killers often contain copper sulfate pentahydrate (CuSO 4 Â·5H 2 O) cyrstals.efinition: Water of hydration is water that is stoichiometrically bound into a crystal. Crystal salts containing water of hydration are called hydrates. Also Known As: water of crystallization, crystallization water.