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Question
A reaction is performed in a water bath initially at 21C which decreases to 18C by the end of the reaction. For this reaction the sign of heat transfer is ________, and the reaction is classified as ________.Answer
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Which one of the following does not contain a polar carbonyl group?
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C) medical procedures.
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What type of shielding can be used to protect against gamma rays?
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B) the amount of sample that undergoes 3.7 1010 disintegrations per second.
C) the amount of tissue damage done by radiation.
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