science ch. 9 vocab
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15 terms
Terms | Definitions |
|---|---|
| whoooooooooooOOOOOooOOOooooOOOOOOOOOOooooOOOOOOOOOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!??????????????????????????????????????????????????????????????????????????????????????><<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><<><><><><><><<><><><><>(>(>>(>(>(>(>(>(>(>(>>)>>(>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |  the change of substances to different substances |
| chemical property | a characteristic of a substance that indicates whether it can undergo a specific chemical change |
| coagulation | process that destroys colloid structure can be used to reduce a colloidal form of air pollution |
| colloid | is a heterogenous mixture that, like a solution, never settles |
| compound | substance made of the combined atoms of two or more elements |
| element | substance in which all the atoms in a sample are alike |
| heterogeneous mixture | a mixture in which different materials can be easily distinguished |
| homogeneous mixture | a mixture in which different materials are blended evenly so the mixture is the same throughout; also called a solution |
| law of conservation of mass | a law stating that material is neither created nor destroyed during a chemical change |
| physical change | a change in size, shape, color, or state of matter |
| physical property | any characteristic of a material that can be observed without changing the identity of the material itself |
| Solution | a homogeneous mixture containing particles so tiny that they cannot be seen even with a microscope ; particles in a solution don't settle and don't scatter light |
| Subtance | matter that is an element or a coumpound |
| Suspension | a meterogenous mixture containing a liquid in which larger particles eventually settle out |
| Tyndall Effect | the scattering of light by particles in a mixture this effect can be seen in all colloids |
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