A measure of the ratio of the quantity of a substanceA material that is either an element or that has a fixed ratio of elements in its chemical formula. to the quantity of solventThe substance to which a solute is added to make a solution., solutionA mixture of one or more substances dissolved in a solvent to give a homogeneous mixture., or oreNaturally occurring minerals from which metals and other substances can be extracted commercially.. Also, the process of making something more concentratedIncreased the concentration of a mixture or solution (verb). Having a large concentration (adjective)..
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