Flashcards on Pure Substances and Compounds

Front

Definition of a pure substance

Back

A pure substance contains only one type of substance.

Front

How are pure substances identified?

Back

Pure substances have a specific melting and boiling point.

Front

How are impure substances identified?

Back

Melting and boiling happen over a range of temperatures for an impure substance.

Front

Definition of a compound

Back

A compound is a substance formed when two or more elements are chemically combined.

Front

Definition of an element

Back

A substance made of one type of atom only.

Front

Correct definition for a formulation

Back

Mixtures that have been prepared using a specific formula for a specific use.

Front

Are paints are formulations

Back

Yes

Front

One way to test if water is pure

Back

Pure water boils at exactly 100°C.

Front

Test for Carbon Dioxide gas

Back

Turns limewater cloudy white

Front

Test for Oxygen gas

Back

Relights a glowing splint