Element, Compound, Mixture Review

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. It consists of only one type of atom.

Front

What is a compound?

Back

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

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

Give an example of an element.

Back

An example of an element is Nitrogen (N).

Front

Give an example of a compound.

Back

An example of a compound is water (H2O), which is formed from hydrogen and oxygen.

Front

Give an example of a mixture.

Back

An example of a mixture is air, which contains various gases such as nitrogen, oxygen, and carbon dioxide.

Front

What type of substance is Na + Cl?

Back

Na + Cl represents a mixture of sodium and chlorine.

Front

What happens when hydrogen and oxygen combine?

Back

When hydrogen and oxygen combine, they form water (H2O), which is a compound.

Front

What type of substance is lemonade?

Back

Lemonade is a mixture, as it consists of water, sugar, and lemon juice that are not chemically bonded.

Front

What is the atmosphere composed of?

Back

The atmosphere is a mixture of gases, primarily nitrogen and oxygen, along with trace amounts of other gases.