Chemistry
What major chemical other than chlorine is used to purify water of microorganisms?
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What term is used for military use of harmful biological agents?
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What process changes a rock's chemical composition to break it down?
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What major chemical other than chlorine is used to purify water of microorganisms?
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What reagent could oxidize an alcohol to a carbonyl?
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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 was known in ancient times and referred to in Genesis as "brimstone"?
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