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29 Cards in this Set

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atom
the smallest particle of a substance that has all of the properties of that substance
boiling point
the temperature at which a substance changes from a liquid to a gas
chemical change
a change that produces a new substance
chemical property
the ability of a substance to change into a new substance with different properties
chemical reactions
the changes that occur during a chemical change
condensation
the process of changing from a gas to a liquid
condensation point
the temperature at which a substance changes from a gas to a liquid
condense
the change from a gas to a liquid as the temperature decreases
density
the amount of mass in a known volume of an object or substance
dissolve
to form a solution with another substance
evaporate
to change from a liquid to a gas
evaporation
the process of changing from a liquid to a gas
freeze
the change from a liquid to a solid when the temperature drops
freezing point
the temperature at which a substance changes from a liquid to a solid
gas
a state of matter in which the substance takes both the shape and volume of its container
liquid
a state of matter in which the substance has a definite volume and takes the shape of its container
melting point
the temperature at which a substance changes from a solid to a liquid
mixture
a combination of two or more substances that do not form a new substance
physical change
a change from one form to another form without turning it into a new substance
physical property
a property that can be observed, measured, or changed without changing the substance itself
property
the characteristic of a substance
solid
a state of matter in which the substance has a definite shape and a definite volume
solubility
a measure of how much of one substance will dissolve in another substance
solution
a mixture of one substance spread out evenly in another substance so that you cannot tell the two substances apart
state of matter
a form that matter can take--solid, liquid, or gas
suspension
a mixture in which floating particles can be seen
temperature
the average speed of particles in a substance
volume
the amount of space that an object or substance takes up
water vapor
the gaseous state of water