Arkansas Barber Practice Exam 2026 – Complete Study Resource

A chemical compound is a substance made up of two or more different elements that are chemically bonded together. Air, soil, and sand are all examples of mixtures, which are made up of different substances that are not chemically bonded. Water, on the other hand, is a compound composed of two elements, hydrogen and oxygen, bonded together to form a new substance with unique properties. Therefore, water is the only correct answer that fits the definition of a chemical compound.