Matter, Pure Substances, and Mixtures

Flashcards covering matter classification, pure substances, compounds, elements, mixtures, physical changes, and separation techniques based on the lecture notes.

Pure Substance

Matter that has constant properties and composition.

Mixture

A sample of matter that does not have constant properties and composition, and can be separated by physical means.

Heterogeneous Mixture

A mixture that is not uniform throughout.

Homogeneous Mixture

A mixture that is uniform throughout.

Element

A pure substance that cannot be simplified chemically, has one atom present, and can be found on the periodic table.

Compound

A pure substance that can be broken into simpler substances by chemical means.

Solution

Another term for a homogeneous mixture, an example of which is gasoline.

Filtration

The method used for the separation of a solid-liquid mixture.

Italian Dressing

An example of a heterogeneous mixture.

Glucose

An example of a compound.

Physical Change

A type of change exemplified by placing a white powder in water where some sinks and some arises.

1 Pound

$0.453$ kilograms