Pure Substances & Mixtures

Front

What is a pure substance?

Back

A pure substance is a material that has a constant composition and consistent properties throughout. Examples include elements and compounds.

Front

What are the two main types of pure substances?

Back

The two main types of pure substances are elements and compounds.

Front

Which of the following is a pure substance: Water, Salad, Air?

Back

Water is a pure substance.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

Front

What is the difference between a homogeneous mixture and a heterogeneous mixture?

Back

A homogeneous mixture has a uniform composition throughout, while a heterogeneous mixture has a non-uniform composition.

Front

Give an example of a homogeneous mixture.

Back

An example of a homogeneous mixture is saltwater.

Front

Give an example of a heterogeneous mixture.

Back

An example of a heterogeneous mixture is a salad.

Front

What is matter?

Back

Matter is anything that has mass and occupies space.

Front

Are elements considered pure substances?

Back

Yes, elements are considered pure substances.

Front

Are compounds considered pure substances?

Back

Yes, compounds are considered pure substances.