Final answer:
Water, ice, and water vapor are three different states of the same compound called water.
Step-by-step explanation:
Water, ice, and water vapor are three different states of the same compound, which is H₂O or water. Water exists in a liquid state at room temperature, ice in a solid state at low temperatures, and water vapor in a gaseous state when water is heated and evaporated. Although they have different physical properties, they are all made up of the same elements - hydrogen and oxygen.
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