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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 single compound that has definite chemical and physical properties.
compound a substance made up of atoms of two or more different elements joined by chemical bonds.
molecule the smallest unit of a substance that keeps all of the physical and chemical properties of that substance.
chemical formula a combination of chemical 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 element in the substance.
mixture a combination of two or more substances that are not chemically combined
Created by: 73MelIwu
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