Chemistry
What is the second most abundant element by mass (about 18.5%) in the human body?
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Analysis of the black soot left over from a fire would reveal what primary element?
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Which of the following best describes what water is?
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Lutetium on the periodic table is noted by which symbol?
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What do scientists use to help organize the elements?
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What is the boiling point of water on the Celsius scale?
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What occurs when molecules are evenly spread out in a space?
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What is a chemical or physical agent that tends to cause cancers?
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What is formed when metals are blended with other metals?
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In 2013, 140 countries signed the Minamata Treaty to protect people from what chemical element?
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Which element is a poisonous gas that combines with sodium to form table salt?
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Phosphorous on the periodic table is noted by which symbol?
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What sort of change happens to a head of lettuce when you cut it in half?
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What element in a liquid state is used in the cryogenic cooling of devices and materials?
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What is a combination of substances that still remain intact?
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What two common ingredients cause an observable chemical reaction when mixed?
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What is the symbol used on the periodic table for the element Promethium?
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