Chemical Building Blocks Vocabulary
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| solid | an object with a definite shape and definite volume
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| liquid | no definite shape; definite volume
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| gas | no definite shape; no definite volume
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| fluid | a substance that flows; a liquid or a gas
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| crystalline solid | the particles form a regular, repeating pattern; has a distinct melting point
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| amorphous solid | particles are not arranged in a regular patter; no distinct melting point
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| temperature | a measure of the average energy of motion of the particles in a substance
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| pressure | force divided by area
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| kilopascals | unit of pressure
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| Boyle's Law | when the pressure of a gas increases, its volume decreases
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| graph | diagram that tells how two variables are related
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| directly proportional | when two variables pass through the (0,0) point on a graph
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| vary inversely | when two variables on a graph form a downward curve close to the vertical axis.
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| physical change | alters the form of a substance, but does not change it to another substance
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| chemical change | substance is changed into a different substance with different properties
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| thermal energy | energy from the movement of particles
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| chemical energy | energy from the chemical bonds within matter
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| Law of Conservation of Energy | Energy can change from one form to another, but energy can never be lost.
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| melting | change in state from a solid to a liquid
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| freezing | change of state from liquid to solid
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| vaporization | liquid water changing into water vapor
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| evaporation | vaporization that takes place on the surface of a liquid
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| boiling | vaporization that takes place inside a liquid and at the surface
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| condensation | occurs when a gas loses enough thermal energy to become a liquid
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| sublimation | occurs when a solid changes into a gas without passing through the liquid state
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| chemical reaction | chemical change
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| viscosity | the resistance of a liquid to flowing
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Created by:
Dcoleman
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