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Which of the following is a mixture?
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1. Intro to General Chemistry
Classification of Matter
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Everything you can touch and everything you can see is matter except for which of the following?
A
Water
B
Salt
C
Air
D
Light
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Understand the definition of matter: Matter is anything that has mass and occupies space (has volume).
Analyze each option to see if it fits the definition of matter:
Water, salt, and air all have mass and take up space, so they are considered matter.
Light, on the other hand, is a form of energy and does not have mass or occupy space, so it is not matter.
Therefore, the correct answer is light because it does not meet the criteria of matter.
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