A | B |
solid | state of matter with definite shape and volume |
liquid | state of matter with definite volume, but no definite shape |
gas | state of matter with no definite shape or volume |
chemical property | characteristic of matter that describe its ability to combine and change |
physical property | characteristic that can be observed without changing matter |
intensive property | characteristic that is the same regardless of sample size (color, temperature, etc.) |
extensive property | characteristic that depends on sample size (mass, volume, etc.) |
plasma | fourth, high energy state of matter most often found in stars |
vapor | gas form of something that is usually a liquid or solid at room temperature |
chemical change | change that fundamentally alters a sample, like burning |
physical change | change that is reversible, like freezing or boiling |
phase change | change from one state of matter to another |
chromatography | separating or identifying parts of a chemical by spreading them out on another material |
filtration | using a porous barrier to separate liquids from solids |
distillation | separation technique based on boiling points |
crystallization | separation technique where a solid is forced out of a solution |
sublimation | transition from solid directly to a gas |
solution | best mixed mixture, extremely hard to tell there are different parts; ex: sugar water |
mixture | two substances that are physically combined |
compound | two or more elements chemically combined with one or more chemical bonds |
element | basic form of matter; cannot be broken into simpler forms |
homogeneous mixture | mixture that has an almost uniform composition |
heterogeneous mixture | mixture where the parts are easily identifiable |
law of definite proportions | the formula of a compound is always the same |
law of multiple proportions | elements will form compounds with different formulas under different conditions |
periodic table | arrangement of the known elements in systematic form |
percent by mass | formula to find out what part of a compound or mixture is made of a certain piece of the whole |