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S8P1.b
describe the difference between pure substance
Term | Definition |
---|---|
Pure substance | a sample of matter with both definite and constant composition with distinct chemical 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 chemical and physical properties of that substance |
chemical formula | a combination of chemical symbols and numbers to represent a substance |
subscript | a number written below and to the right of a chemical symbol in a formula |
mixture | a combination of two or more substances that are not chemically combined. |