Water, H₂O, is made up of different elements, hydrogen and oxygen. Is this type of combination a mixture or a pure substance?

Question

Water, H₂O, is made up of different elements, hydrogen and oxygen. Is this type of combination a mixture or a pure substance? Answer Options: A. Because water is composed of two separate elements, it is a mixture. B. Because water can be heated and fairly easily turned to steam, it is a mixture. C. Because water is composed of elements found in the periodic table, it is a pure substance. D. Because water molecules all have a consistent ratio of hydrogen to oxygen, it is a pure substance.

Quizzma Team · Answer

Correct Answer: D. Because water molecules all have a consistent ratio of hydrogen to oxygen, it is a pure substance. Explanation: Water is a pure substance because it is a compound, meaning it consists of a fixed ratio of hydrogen (H) to oxygen (O) atoms, chemically bonded together. This consistent ratio distinguishes it from mixtures, where the composition can vary.

Water, H₂O, is made up of different elements, hydrogen and oxygen. Is this type of combination a mixture or a pure substance?

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