Chemistry
What is the symbol used on the periodic table for the element Promethium?
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What precious metal is most commonly used in catalytic converters for cars?
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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 used to remove oxygen from cathode ray tubes and vacuum tubes?
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What would you call the treatment of disease, usually cancer, by chemical agents?
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The spontaneity of a reaction is determined by which of these?
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