Congratulations to Darien for finding out the correct number of isomers of C5H10Cl2. By the correct, it means a value Mr. Alex Lee agrees with. 1/21 of the congratulations goes to David for helping Darien with one out of twenty-one. For your information, Mr. Alex Lee solved it in less than ten minutes while Darien and David took around two hours.
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April 6, 2010 at 4:37 PM
What about Jereme's 30+??
April 6, 2010 at 8:08 PM
That was Vernon's....Alex said his extras were duplicates of the previous