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S8P1.b

Describe the difference between pure substances (elements and compounds) and mix

TermDefinition
Pure substance a sample of matter, either a single element or a single compound that has a definite chemical and physical properties.
Compound substance made of atoms of 2 or more different elements joined by chemical bonds.
Molecule 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 small number written by a chemical symbol to tell the numbers of atoms of that element.
Mixture combination of substances that are not chemically combined.
Created by: 84IanOli
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