Elements, Compounds, and Mixtures Test

Front

What is a pure substance made of two or more elements chemically combined?

Back

A compound.

Front

What is a mixture?

Back

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

Front

What is an element?

Back

A substance made up entirely of one type of atom.

Front

What is methane (CH4)?

Back

A compound made of carbon and hydrogen.

Front

What is nitrogen (N)?

Back

An element that is a gas at room temperature.

Front

What is the difference between a compound and a mixture?

Back

A compound is chemically combined, while a mixture is not.

Front

Can a mixture be separated by physical means?

Back

Yes, mixtures can be separated by physical methods like filtration or magnetism.

Front

What is an example of a compound?

Back

Water (H2O) is a compound made of hydrogen and oxygen.

Front

What is an example of an element?

Back

Oxygen (O) is an element.

Front

What happens when a magnet is used on a mixture of iron and sulfur?

Back

The iron (a magnetic substance) will be attracted to the magnet, leaving sulfur behind.