ALL OF CHAPTER 2 (CHEMISTRY)
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Created by:
funions1211 on April 6, 2010
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24 terms
Terms | Definitions |
|---|---|
 solid | something that has definite shape and a definite volume |
| crystalline solid | solids that are made up of crystals |
| amorphous solid | when the particles of a solid are not arranged in a regular pattern |
| liquid | something that has a definite volume but no shape of it's own |
| fluid | a substance that flows (same as a liquid) |
| surface tension | the result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together |
| viscosity | a liquid's resistance to flowing |
| gas | something that can change volume very easily |
| melting | the change in state from solid to liquid |
| melting point | a specific temperature in which melting occurs |
| freezing | the change of state from liquid to solid |
| vaporization | the change from liquid to gas |
| evaporation | vaporization that takes place only on the surface of a liquid |
| boiling | when a liquid changes to a gas below it's surface as well as the surface |
| boiling point | the temperature at which a liquid boils |
| condensation | the opposite of vaporization --or-- the change in state from gas to liquid |
| sublimation | when the surface particles of a solid gain enough energy that they form a gas |
| pressure | the force of gas' push (force) divided by the area of the walls of the container (area) |
| Boyle's law | the relationship between the pressure and the volume of a gas that states: when the pressure of a gas at constant temperature is increased, the volume of the gas decreases and when the pressure is decreased, the volume increases |
| Charles' law | the principle that states: when the temperature of a gas is increased at constant pressure, its volume increases and when the temperature of the gas is decreased at constant pressure, its volume decreases |
| graph | a diagram that tells how two variables, or factors that change, are related |
| origin | the point (0,0) |
| directly proportional | when a graph of two variables is a straight line passing through the origin |
| vary inversely | when a graph of two variables forms a curve |
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