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23 Cards in this Set
- Front
- Back
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solid |
Defintie shape and volume |
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liquid |
definite volume, not shape
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gas |
no definite shape or volume
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viscosity
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a liquids resistance to flow |
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surface tension
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force acting on the particles at the surface of a liquid |
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physical property
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can be observed without changing the chemical make-up |
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chemical property
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trait relating to a change in the makeup of the substance
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phase (state) change |
the amount of energy required to change from one phase to another |
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chemical change |
A change in matter that produces a new substance |
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physical change
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a change that alters the form or appearance of a material but does not make the material into another substance |
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precipitation
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A solid formed during chemical rxn |
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atom
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most simple; cant be broken down any further |
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element |
made up of the same types of atoms and ONLY those atoms |
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compound
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contains at least 2 different types of elements; has different properties than those elements |
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mixture
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2 or more different elements physically combined; they can be separated |
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melting
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the form of a solid turning into a liquid |
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evaporation
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the process by which molecules at the surface of a liquid absorbed energy to change to a gas |
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freezing
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a liquid turning into a solid |
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boiling
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an abject turning into a gas |
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condensation
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s the change of water from its gaseous form (water vapor) into liquid water |
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sublimation |
s the transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase |
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endothermic reaction
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process describes a process or reaction in which the system absorbs energy from its surroundings |
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exothermic reaction |
is a chemical reaction that releases energy by light or heat |
