click below
click below
Normal Size Small Size show me how
S8P1.b
describe the difference pure substance (e an d c) and mixtures
Question | Answer |
---|---|
pure substance | a sample of matter, either a single element or a single compound, that has definite chemical and physical properties |
compound | a substance made of atoms of two or more different element joined by chemical bonds |
molecule | the smallest unite of substance that keep all of the physical and chemical properties of that substance |
chemical formula | a combination of chemical |
subscript | a small number written to the 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 |