plane. Compare to your ethene model from Part A and have your instructor check your model and initial here before proceeding: b. Using this echene orbital model orientation and the two carbon anoms below, sketch: 1) In the plane of the page, the 2p orbitals used to form the pi bond in ethene; 2) all of the p2 bybrid orbitals used by usod by the carbon atoms to form signat bonds and 3) the ovetlap of the four hydrogen Jr orbitals with the iq bybrid orbitals to show the CH bonds. Put one label fir each ertital showing its Re. c. In terms of the orbitals involved, why do all of the atoms in ethene hrve to be in the same plane? d. To model all of the orbieals used by the carbons in ethyne, construct pan of the following, one to represent cach carbon atoms Use a six-hole, ycllow atom. Atrach two pink paddles in a linear arrangement to represent the rwo ss hybrids used by the carbon to form sigma bonds. Then put two sets of two (four) purple paddles 180 apart in the remaining four holes to represent the two 2p orbitals used to form two pi bonds. Hold the two models (they worit be connected) so that one sp hybrid on each carbon overiaps and all of the p hybrids on both atoms are linear. Line up a 2p orbital on each carbon so that they are parallel to each other. Compare to your ethyne model from Part A and have your instructor check your model and initial here before proceeding: e. Using this ethyne orbital model orientation and the two carbon atoms below, sketch: 1) In the plane of che pages one 2p orbital on cach carbon used to form one of the pi bonds in ethyne; 2 ) the other set of 2p orbitals used to form the other pi bond; 3) all of the sp hybrid orbitals uved by the carbon atoms to form sigmer bonds, and 4) the overlap of the two hydrogen lr otbitals with the ip hybrid orbitals to show the CH bonds. Pur one label for each orbiaal abouing it ope. H C C H f. What is the total number of orbitals used to form all sigma bonds in ethyne? 6 g. What is the cotal number of orbitals used to form all pi bonds in ethyne