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16 Cards in this Set
- Front
- Back
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phase change |
the amount of energy required to change from one phase to another
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solid |
state of matter with definite shape and volume |
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liquid |
state of matter with definite volume but not shape
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gas |
state of matter with neither definite shape or volume
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freezing |
liquid changes to a solid
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melting |
solid changes to a liquid
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evaporating |
liquid changes to a gas |
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surface tension |
force acting on the particles at the surface of a liquid |
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condensation |
gas changes into a liquid
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sublimation |
the change from gas to solid |
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precipitate |
a solid formed during a chemical rxn.
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physical change |
change that alters the form or appearance of a meterial but does not make the material into another substance
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chemical change |
a change in matter that produces a new substance.
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endothermic reaction |
a reaction that absorbs energy |
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exothermic reaction |
a reaction that releases energy, usually in the form of heat |
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viscocity |
liquid's resistance to flow/run |
