3 states of matter are...
A change that alters the form of a substance, but not its identity
A change to a substance that combines or breaks apart to form a brand new substance
Consists of 2 or more substances that are in the same place, but are not chemically combined
The best mixed of all possible mixtures is called a...
These substances cannot be broken down into other substances by any physical or chemical means.
A substance made of 2 or more elements that are chemically combined.
The smallest particle of an element.
A group of atoms that are joined together and act as a single unit
The force that holds 2 atoms together.
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