Chemistry
What is the second most common metal on Earth, and the most widely-used metal?
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Acetylsalicylic acid is the chemical name for which?
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Which chemical, also used in thermometers, was involved in early photo development?
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What is a method to indicate reactants and products of a chemical reaction using chemical formulas?
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High levels of what chemical may be in trailers provided for people displaced by Hurricane Katrina?
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Gold, silver, lead, and copper exhibit the properties of which of the following crystal systems?
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Which of these is a heavy gas used in specialized electric lamps?
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