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12 Cards in this Set

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  • Back
compound
a substance in which two or more elements are chemically joined in a set ratio.
mixture
two or more substances that are mixed together but not chemically combined.
chemistry
the study of the properties of matter & how matter changes.
energy
the ability to do work or cause change.
element
a substance composed of a single kind of atom, that cannot be broken down into other substances by chemical or physical means.
matter
anything that has mass and occupies space.
substance
a single kind of matter that has distinct physical and chemical properties.
physical change
a change that alters the form or appearance of a substance but does not make the material into another substance.
state
the three forms (solid, liquid & gas) in which matter exists.
physical property
a characteristic of a substance that can be observed without changing the substance into something else.
chemical change
a change in matter that produces new substances.
chemical property
a characteristic that is observed when a substance interacts with another substance.