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A molecule of alkene has the chemical formula C3H4. How many carbon-carbon double bonds are present in the molecule? A) One B) Two C) Three.
answered
Jan 8, 2017
Chemistry
high-school
4
votes
234k
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in 2008 , the World récord for swimming the 50 meter freestyle event was 21.34 seconds . supposing the athlete swam at a constant rate , what was his speed ? round your answer to the nearest hundreth
answered
Aug 23, 2016
Mathematics
middle-school
1
vote
79.0k
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