click below
click below
Normal Size Small Size show me how
S8P1.b
Decrible the different between pure substance (e and c ) and mixtures
| Term | Definition |
|---|---|
| pure substance | a sample of matter, either a single element or a single compound,that has define chemical and physical propertices |
| compound | a substance made up of atoms of atoms of two more difference elements joined by chemical bonds |
| molecule | the smallest unit of substance that keeps all of the physical and chemical propertices |
| chemical formula | a combination of chemical symbols and numbers to represent to a subtance |
| subscript | a small number written to the right and slightly below a chemical symbol to tell the number of atoms of that element in the substance |
| mixture | a combination of two or more substance that are not chemically combined |