Chemistry
What is the name of the temperature at which Helium I becomes Helium II?
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What happens to water when it gets close to freezing?
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What is used in manufacturing matches, fertilizers and pesticides, and in vulcanization of rubber?
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What allotrope of oxygen helps protect the biosphere from solar ultraviolet radiation?
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Carbon Dioxide, often given off in a fire, is comprised of what?
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What is a chemical process by which the hair is permanently straightened?
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What is the symbol used on the periodic table for the element Promethium?
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