psych chp. 4 part 1
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Created by:
mniesborella on November 17, 2011
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12 terms
Terms | Definitions |
|---|---|
 chemical changes | change in identity nature of reacting materials |
| physical change | change in appearance but not fundamental nature |
| extensive | directly proportional to system size (mass) |
| intensive | independent of system size; characterize the nature of the material; useful for identification |
| physical match | direct physical match (jigsaw fit); indirect physical match; exemplars |
| exemplars | imprints; indentations; striations and other toolmarks |
| transparent | fused quartz; comes from quartz |
| translucent | fused silica; comes from sand |
| soda ash | makes fire hotter; near the sea from amrine plants; has Na |
| potash | makes fire hotter; land plants that contain K |
| lead crystal | sparkles; high refraction index; can be cut for decorative articles |
| borosilicate glass | very high resistance to temperature change and corrosion |
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