Chemistry
What gas in excited state is responsible for the bright red and yellow-green colors of the aurora?
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Reacting an alkene with water produces which of the following?
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What is a compound or mixture of chemical compounds that is used to maintain a steady pH?
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What is known as the energy required to start a chemical reaction?
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Felix Hoffmann, not Bayer, first patented what remedy?
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Which of these helps determine what state of matter a substance is in?
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What volume does 24 grams of ammonia gas occupy at standard temperature and pressure?
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