Draw the curved arrow mechanism for the reaction between 4-methylheptan-2-one and (CH_3)_3 O^- in t-butanol to form an enolate. Draw all electrons and charges on both resonance structures. Select all that describe the reaction and/or resonance structures irreversible reaction kinetic enolate anion alpha -deprotonation beta -deprotonation reversible reaction thermodynamic enolate anion