| A | B |
|---|
| matter | anything that has mass n takes up space |
| mixture | physical blend of 2 or more subs that aren't combined |
| compound | 2 or more elements chemically combined |
| chemical property | characteristic-only seen when reacting w/other substance |
| mass | amount of matter that object contains |
| chemical reaction | changing of substances to other subs by the breaking of bonds |
| physical property | characteristic of substance -can be observed or measured |
| chemical formula | shows number n type of atoms presented in smallest form |
| accuracy | closeness of a measurement to the true value of what's being measured |
| precision | closeness or reproducability of a set of measurements taken in the same conditions |
| chemistry | the study of matter, it's properties and changes |
| homogeneous mixture | 2 or more subs perfectly blended |
| heterogeneous mixture | mixture that's not uniform in comp |
| element | simplest form of matter can't be broken down |
| substance | sample of matter having uniform n definite compostion, wither an element of compound |
| reactant | starting sub in chemical reaction |
| product | substance formed in chemical reaction |
| density | the mass of a substance |
| exothermic | heat is released n temp goes up |
| endothermic | heat is absorbed n temp goes down |
