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Mercury is 13.6 times as dense as liquid water. What would be the reading of a water-filled barometer at normal atmospheric pressure
asked
Feb 28, 2017
Chemistry
college
1
answer
2
votes
165k
views
Which of these statements is true? A. Some molecules may contain no atoms. B. Some elements found in nature exist as molecules. C. Some compounds include only one type of element. D. Some atoms are made
asked
Sep 16, 2015
Chemistry
middle-school
2
answers
2
votes
220k
views
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