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Physical Science

s8p1.b Describe the difference between pure substances (elements and compounds)

TermDefinition
Pure substance A pure chemical compound is a chemical substance that is composed of a particular set of molecules or ions. Two or more elements combined into one substance through a chemical reaction form a chemical compound.
Compound a thing that is composed of two or more separate elements; a mixture.
Molecule a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
Chemical formula a set of chemical symbols showing the elements present in a compound and their relative proportions, and in some cases the structure of the compound.
Subscript (of a letter, figure, or symbol) written or printed below the line.
Mixture a substance made by mixing other substances together.
Created by: 89AleGro