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What does the name 2–butene tell you about this hydrocarbon's molecular structure? A.There are two carbon atoms and all single carbon bonds. B. There are two carbon atoms and a double carbon bond. C. There are three carbon atoms and a double carbon bond that starts on the second carbon atom. D. There are four carbon atoms and a double carbon bond that starts on the second carbon atom.

Melissa Norris

in Chemistry

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Craig Stewart on January 9, 2019

Option D. There are four carbon atoms and a double bond which starts at the second carbon atom.Methane: a carbonEthene: two carbonsPropene: three carbonsButene: four carbons.Pentene: five carbonsThe suffix - ene is used for double bonds.The number 2 indicates the place of carbon in which the double bond is located.


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