New Jersey Barber and Hairstyling Practice Exam

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Get ready for the New Jersey Barber and Hairstyling Exam. Study with our challenging multiple-choice questions, detailed explanations, and helpful hints. Be well-prepared and confident for your test day!

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An example of a pure substance is?

Aluminum Foil
Water
Plastic
Air

The correct answer is: Aluminum Foil

An example of a pure substance is a material that is made up of only one type of atom or molecule. Options B, C, and D are not considered pure substances because they are composed of different types of atoms and molecules. B is a mixture of hydrogen and oxygen atoms, C is a polymer made up of different monomer units, and D is a mixture of gases such as nitrogen, oxygen, and carbon dioxide. Therefore, A, aluminum foil, is the only pure substance among the choices given.