Structure of this alkene is in Word document attached. <span>First find main chain with longest number of carbon atoms, that is chain with seven carbon atoms and it start on the right and going up the three-carbon attachment. Main chain has double bond between first and second carbon (</span><span>the lowest number)</span><span>, so it is 1-heptene (alkene). </span>Substituent is on fourth carbon atom, it is alkyl group with two carbon atoms (ethyl).
