Intro Chem Ch.1-5 vocab

solid

The physical state characterized by both a definite shape and a definite volume; the physical state characterized by a dominance of potential energy (cohesive forces) or kinetic energy (disruptive forces).

pure substance

A single kind of matter that cannot be separated into other kind s of matter using physical means.

properties

The distinguishing characteristics of a substance, which are used in its identification and description.

physical property

A characteristic of a substance that can be observed without changing the substance into another substance.

physical change

A process in which a substance changes its physical appearance but not its chemical composition.

mixture

A physical combination of two or more pure substances in which each substance retains its own chemical identity.

matter

Anything that has mass and occupies space.

liquid

The physical state characterized by both an indefinite shape and a definite volume; the physical state characterized by potential energy (cohesive forces( and kinetic energy (disruptive forces) of about the same magnitude.

intensive property

A property that is independent of the amount of substance present.

homogeneous mixture

A mixture that contains only one visually distinguishable phase (part), which has uniform properties throughout.

heterogeneous mixture

A mixture that contains two or more visually distinguishable phases (parts), each of which has different properties.