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In chemistry, concentration is the abundance of a constituent divided by the total volume of a mixture. Several types of mathematical description can be distinguished: mass concentration, molar concentration, number concentration, and volume concentration. The term concentration can be applied to any kind of chemical mixture, but most frequently it refers to solutes and solvents in solutions.
Noun. 1. chemical science-the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions. chemistry. electronegativity, negativity - (chemistry) the tendency of an atom or radical to attract electrons in the formation of an ionic bond.