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How many pi bonds are in the molecule 2-butyne, CH₃C≡CCH₃? a. 1 b. 2 c. 4 d. 6 e. 10
asked
May 19, 2015
Chemistry
high-school
1
answer
3
votes
19.3k
views
Alex usually runs for 21 hours a week, training for a marathon. If he is unable to run for 3 days, describe how to find out how many hours of training time he loses, and write the appropriate integer to
asked
Jan 18, 2015
Mathematics
middle-school
1
answer
4
votes
163k
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