Chapter 2 Vocabulary

Front

Matter that always has exactly the same composition; an element or compound

Back

pure substance

Front

A substance that cannot be broken down into simpler substances.

Back

element

Front

The smallest particle of an element

Back

atom

Front

A substance that is made from two or more simpler substances and can be broken down into those simpler substances.

Back

compound

Front

A type of mixture in which the parts of the mixture are noticeably different from one another.

Back

heterogeneous mixture

Front

A type of mixture in which the substances are so evenly distributed that it is difficult to distinguish one substance from another.

Back

homogeneous mixture

Front

A mixture that forms when substances dissolve and form a homogeneous mixture.

Back

solution

Front

A heterogeneous mixture that separates into layers over time.

Back

suspension

Front

A mixture that contains some particles that are intermediate in size between the small particles in a solution and the larger particles in a suspension.

Back

colloid

Front

Any characteristic of a material that can be observed or measured without changing the composition of the substances in the material.

Back

physical property