12.72a2 Add curved arrw(s) to complete step 2 of the mechanism. :: H.C. 1 CH3 .. + -CH O- . Edit Drawing Step 1 Add any remaining curved arrow(s) to complete the first step of the mechanism. Modify the given drawing of the product as needed to show the intermediate that is formed in this step, with close attention paid to stereochemistry. Use the single bond tool to interconvert single and double bonds. CH HTH CH, .. CH, HC. CH, HC H.C H.C IM OH OH . :OH HOH CH, Edit Drawing 12.72a2 Add curved arrow(s) to complete step 2 of the mechanism. :0: H2C CHE H2C + CH, :o H . Edit Drawing