Chemistry

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

More Questions from Chemistry
Which is more abundant in the earth's crust?
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What symbol appears on the periodic table for Calcium which has the atomic number 20?
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What is essential for calcium absorption by the human body?
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What kind of crystalline solid is a grain of sand?
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Acetylsalicylic acid is the chemical name for which?
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Reacting an alkene with water produces which of the following?
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Which of these molecules are not planar?
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What is adherence between materials such as bricks/mortar?
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