Chemistry
Felix Hoffmann, not Bayer, first patented what remedy?
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What gas in excited state is responsible for the bright red and yellow-green colors of the aurora?
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What actinide was once used to power pacemaker batteries, but has since been replaced?
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Felix Hoffmann, not Bayer, first patented what remedy?
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What is the symbol used on the periodic table for the element Chlorine?
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What three components are needed in order to produce fire?
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What is known as the energy required to start a chemical reaction?
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What is a chemical or physical agent that tends to cause cancers?
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What process changes a rock's chemical composition to break it down?
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