click below
click below
Normal Size Small Size show me how
S8P1.b
describe the difference between pure substances (elements & Compounds) & mixture
Term | Definition |
---|---|
Pure Substance | a sample of matter, either a single element or compound, that has a definite chemical & physical properties |
Compound | a substance made up of atoms of 2+ different elements joined by chemical bonds |
Molecule | the smallest unit of a substance that keeps all of the physical & chemical properties of the substance |
Chemical Formula | a combination of chemical symbols & #s to represent a substance |
Subscript | a small # written to the right & slightly below a chemical symbol to tell the # of atoms of that element in the substance |
Mixture | a combination of 2+ substances that aren't chemically combined |