Substances and Mixtures *Use p. 1 notes

Front

What is a pure substance?

Back

A pure substance is matter that has a definite and constant composition, consisting of only one type of particle.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each substance retains its own properties.

Front

What is an element?

Back

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

Front

What is a compound?

Back

A compound is a substance formed when two or more elements chemically bond together in a fixed ratio.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition and appearance throughout.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture that consists of visibly different substances or phases.

Front

What is the difference between a substance and a mixture?

Back

A substance has a uniform and definite composition, while a mixture contains two or more substances that can vary in composition.

Front

What is an example of a pure substance?

Back

Water (H2O) is an example of a pure substance.

Front

What is an example of a heterogeneous mixture?

Back

Salad is an example of a heterogeneous mixture because its components can be seen and separated.

Front

What is an example of a homogeneous mixture?

Back

Saltwater is an example of a homogeneous mixture because the salt is evenly distributed throughout the water.