Circle the terms that correctly describe Molecule A. contains ester NH contains amide . contains ketone has enantiomer has diasteromer achiral chiral Molecule A meso b) What is the molecular formula of Molecule A? Later on in this course we are going to learn about acid/base mechanisms; one example is the formation of anionic Molecule B shown below. OH H NH NH + H20 Molecule A Molecule B At least three other resonance structures can be drawn for Molecule B; draw the three most contributing structures in the boxes below (no curved arrows needed). Of the 3 structures below, CIRCLE the most contributing resonance structure. Resonance structure 1 Resonance structure 2 Resonance structure 3