2. Draw the desired structures of products, give the necessary reagents or draw the required mechanism in each item below. 5 72 4 7 0= 6 9 8 11 12 10 143 16 18 Figure 1. Oleic acid HE 13 F4 15 17 H30 $19 CH3 FIGURE 2. Oleic acid expressed in a more condensed form