Chemistry

When cutting onions what is released in the air that makes a person tear?

More Questions from Chemistry
What volume does 24 grams of ammonia gas occupy at standard temperature and pressure?
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Which of the following is an example of a mixture?
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What device controls temperature with a switch?
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Heavy water contains what isotopic form of hydrogen?
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What phenomenon explains why cyclohexatriene does not exist?
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What symbol appears on the periodic table for the element with the atomic number 106?
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What is another name for salt?
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What gas makes up most of the atmosphere of Mars?
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