Which jar contains a mixture? 1) a jar of solid carbon 2) a jar of carbon dioxide gas 2) a jar of liquid copper 2) a jar of copper and water

The answer is a jar of copper and water

A jar of copper and water contains a mixture.

Explanation:

A mixture is a substance or material that consists of two or more different materials.

For example, when copper is added to water then it results in the formation of a mixture because both copper and water are two different materials.

Whereas a jar of solid carbon, carbon dioxide, and liquid copper has just one material. Therefore, they are not a mixture.

Hence, we can conclude that a jar of copper and water contains a mixture.

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