Classification of Matter

Front

What is the definition of an element?

Back

A substance in which all the atoms are the same.

Front

How many elements are in the following list: Oxygen (O), Sodium Chloride (NaCl), Gold (Au), Neon (Ne)?

Back

3

Front

True or False: The properties of a compound are usually different than the properties of the elements it contains.

Back

True

Front

What is a pure substance?

Back

Matter with a fixed composition.

Front

What is a mixture?

Back

A combination that can be separated by physical processes.

Front

What is the difference between a compound and a mixture?

Back

A compound is a substance formed when two or more elements are chemically bonded, while a mixture is a combination of two or more substances that are not chemically bonded.

Front

Give an example of a homogeneous mixture.

Back

Saltwater.

Front

What is a colloid?

Back

A mixture where tiny particles are evenly distributed but not dissolved.

Front

What is the symbol for Gold?

Back

Au

Front

What is the symbol for Sodium Chloride?

Back

NaCl