click below
click below
Normal Size Small Size show me how
S8P1.b
Question | Answer |
---|---|
pure substance | a sample of matter either a single element or a single compound that has definite chemical and physival changes |
compound | a subtance made up of atoms of two or more differents elements joined by chemical bonds |
molecule | the smallest that keeps all of the physical and chemical properties of that substance |
chemical formula | a combination of chemical symbols and numbers to repersent to represent a substance |
subscript | a small number written to the right and slightly below a chemical symbol to tell the numberof atoms of that element in thr substance |
mixture | a combination of two or more substances that are not chemically combined |