Chemistry
What isotope of carbon can be used to figure out how old some objects are or when something died?
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What is deterioration of a metal by chemical or electrochemical reaction with its environment?
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What element forms about 78% of Earth's atmosphere by volume?
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The most common commercial use of magnesium metal is as an alloying agent with what other element?
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Felix Hoffmann, not Bayer, first patented what remedy?
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Which two transition metals do not exhibit diamagnetism?
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In a triple bond, how many each pi and sigma bonds are there?
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