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S8P1.b

Describe the difference between pure substances (e and c) 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 of that element in the substance.
mixture A combination of two or more substances that are not chemically combined.
Created by: Mlgeology
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