C2Ha 一H sp2 hybridize the carbon: Sp2 Sp2 Px Q+ SD2 Notice there is an extra p orbital that is not involved in hybridization: Sp2 sp Sp2 Sp2 SD Sp2 X-11C2H4 sp2 hybridize the carbon: Notice there is an extra p orbital that is not involved in hybridization: sp2 sp2 sp2 p sp2 sp2 sp2 px px py pz px C C H H H H sp2 sp2 sp p 2 XI-11