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matter and change ch.2 (3 states of matter (liquid (A substance that flows…
matter and change ch.2
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3 states of matter
liquid
A substance that flows and keeps no definite shape because its molecules are loosely packed and constantly moving. It takes the shape of its container but maintains constant volume
gas
A substance that can only be contained if it is fully surrounded by a container (or held together by gravitational pull); a substance whose molecules have negligible intermolecular interactions and can move freely
solid
A substance that retains its size and shape without a container; a substance whose molecules cannot move freely except to vibrate
describing matter
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intensive property
definition
a bulk property, meaning that it is a physical property of a system that does not depend on the system size or the amount of material in the system
examples
color, boiling point, pressure, molecular weight and density