Pure Substances Review

Front

What is a pure substance?

Back

A pure substance is a material made up of only one type of atom (element) or compound.

Front

What is an example of a pure substance?

Back

Pure oxygen is an example of an element, which is a pure substance.

Front

True or False: Elements and compounds are considered pure substances.

Back

True.

Front

What is a compound?

Back

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

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means.

Front

Give an example of a compound.

Back

Water (H2O) is an example of a compound.

Front

What distinguishes a heterogeneous mixture from a homogeneous mixture?

Back

A heterogeneous mixture has visibly different substances or phases, while a homogeneous mixture has a uniform composition.

Front

What is a particle diagram?

Back

A particle diagram visually represents the arrangement and behavior of particles in a substance.

Front

What type of substance is represented by a particle diagram showing uniform particles?

Back

A pure substance.