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describe the difference between pure substances and mixtures

TermDefinition
pure substance a sample of matter that has definite chemical and physical properties
compound a substance made up of 2 or more elements joined by chemical bonds and atoms
molecule the smallest unit of a substance that keeps all of the physical and chemical properties of that substance
chemical formula a way of expressing the proportions of atoms
subscript a number or figure that is smaller than the average or normal type of thing.
mixture two chemicals or elements mixed together by chemical bonds
Created by: 37skygur
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