1C2H6+2O2 yields 3H2O + 2CO2 would this be the hydrocarbon butene? If I did this wrong, how would you correctly identify this hydrocarbon? Thanks for your help.

Answer 1

It is C2H6, ethane.

http://en.wikipedia.org/wiki/Ethane

Memorize the alkanes through octane. Then -enes, and -ynes are easy

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click on the left on alkanes.