Normal Size Small Size show me how
Describe the differences between pure substances and mixtures.
|Pure substance||a sample of matter either a single element or a single compound that has a definite chemical or physical properties.|
|compound||a substance made of an atoms of two or more different elements joined by chemical bonds.|
|molecule||smallest units of a substances that keeps all of the physical and chemical properties of that substances|
|chemical formula||a combination of chemical symbols and numbers to represent a substances.|
|subscript||a number written below and to the right of a chemical symbol in the formula.|
|mixture||a combination of two or more substances that are not chemically combined.|