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S8P1.b

Describe the difference between pure substances and mixtures

TermDefinition
pure substance a sample of matter, either a single element or a simple compound, that has definite chemical or physical properties
compound a substance made up of atoms of 2 or more elements joined by chemical bonds
molecule the smallest unit of a substance that keeps all physical and chemical properties of the substance
chemical formula a combination of symbols and numbers to represent a substance
subscript a small number written to the right and slightly below a chemical symbol to tell the number of atoms that the element substance
mixture 2 or more substances that are not chemically combined
Created by: 79DylHug
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