click below
click below
Normal Size Small Size show me how
S8P1.b
Describe the difference between pure substances(elements and compounds)and mix
Term | Definition |
---|---|
pure substance | a sample of matter a element or a single element or a single compound, that has 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 substance that keeps all physical and chemical properties of the substance |
chemical formula | a combination of chemical symbols and numbers to represent a substance |
subscript | a small number written to be right and sighty below a chemical symbol |
mixture | a combination of two or more substances that are not chemically combined |