Which Jar Contains a Mixture?

Question:

Which jar contains a mixture?

A. A jar of solid carbon.

B. A jar of carbon dioxide gas.

C. A jar of liquid copper.

D. A jar of copper and water.

Answer:

A jar of copper and water.

When trying to determine which jar contains a mixture, it is important to understand the definition of a mixture. A mixture is a combination of two or more substances that are not chemically bonded together. In this case, the jar of copper and water is the only option that contains a mixture.

The other jars contain either elements or compounds. Solid carbon is an element, while carbon dioxide gas and liquid copper are compounds. Only the jar of copper and water contains a mixture of copper and water that are physically combined but not chemically bonded.