Chemistry
What radioactive metallic element, found in all uranium ores, has an atomic number of 89?
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What is the oxidation number on the chromium in a dichromate ion "(Cr2O7)^2-"?
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What word is used to describe crops and foodstuffs grown without chemicals?
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What substance is industrially prepared by the Haber Process?
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What element was discovered as a component of the debris of the first hydrogen bomb explosion?
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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 the name of the protein found in wheat flour?
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