a a) Provide a mechanism for the following reaction. Be sure to use curved arrows, indicate formal charges, and show all intermediates (15 points) H2O, H2SO4 CN OH + NH4+HSO4 draw mechanism below: b) Provide a mechanism for the following reaction.. Be sure to use curved arrows, indicate formal charges, and show all intermediates (10 points) NH2 H OH draw mechanism below: c) Provide a mechanism for the following reaction.. Be sure to use curved arrows, indicate formal charges, and show all intermediates (12 points) CH,ONA , CH3OH H