B. carbon dioxide
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6. what does the symbol ah stand for? o one calorie given off by a reaction the specific heat of a substance the heat capacity of a substance the heat of reaction for a chemical reaction
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Which of the following is in the lanthanide family? a) uranium b) promethium c) silver d) gold
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Select the correct answer from each drop-down menu. to make a table of the elements, dmitri mendeleev sorted the elements according to their . he then split the list of elements into several columns so that elements beside each other had similar .
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Which of following is not an ingredients for photosynthesis?
A. oxygen
B. carbon dioxide
B. carbon dioxide
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