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23 Cards in this Set
- Front
- Back
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atom |
can't be broken down any further |
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chemical change |
a change in which one or more substances combine or break apart to from a new substance |
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chemical property |
trait relating to a change from one phase to another |
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compound |
contains at least 2 different types of elements |
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condensation |
the change in state from a gas to a liquid |
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element |
made up of the same types of atoms and only those atoms |
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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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evaporation |
the proces by which molecules at the surface ofa liquid absorb enough energy to change to a gas |
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freezing |
changing from a liquid to a solid |
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gas |
no definite shape or volume |
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liguid |
definite volume, not shape |
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mixture |
2 or more different types of elements physically combined |
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melting |
changing from a solid to a liquid |
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physical change |
a change that alters the form or appearance of a material but does not make the material into another substance |
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physical property |
can be observed without changing the chemical makeup |
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phase change |
the amount of energy required to change from one phase to another |
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precipitate |
asolid that froms from a solution during a chemical change |
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solid |
definite shape and volume
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sublimation |
changes from a solid to a gas without becoming a liquid |
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surface tention |
force acting on the particles at the surface of a liquid |
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viscosity |
a liquids resistance to change |
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boiling |
change from a liquid to a gas |
