Pure Substances and Mixtures

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that appears the same throughout and has a uniform composition.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture that does not have a uniform composition and the different components can be seen.

Front

Define a pure substance.

Back

A pure substance is a material that has a constant composition and consistent properties throughout.

Front

What is an element?

Back

An element is a pure substance made up of only one type of atom.

Front

What is a compound?

Back

A compound is a pure substance made up of two or more different elements that are chemically combined.

Front

Give an example of a pure substance.

Back

Water is an example of a pure substance.

Front

What is the simplest kind of pure substance?

Back

The simplest kind of pure substance is an element.

Front

True or False: The properties of a compound are just like their elements.

Back

False. The properties of a compound can be very different from the properties of the elements that make it up.

Front

Differentiate between an element and a compound.

Back

An element is a pure substance made up of only one type of atom, while a compound is made up of two or more different elements chemically combined.

Front

What is a mixture?

Back

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