click below
click below
Normal Size Small Size show me how
S8P1.b
| Term | Definition |
|---|---|
| pure substance | a sample of matter,either a single element or a single compound,that has a 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 m ore substances that are not chemically combined |