$1.$ Reversibility and driving forces in acyl substitution reactions.

Reversibility and driving forces in acyl substitution reactions.

a$.()$ Choose an equilibrium arrow to complete the acyl substitution reaction scheme halnur.

b$.()$ Explain your answer to part a using the ideas of "carbonyl resonance stabilization" and "electrophilicity" $($Hint: see LecC$-4$e$)$

c$.()$ Explain your answer to part a using the idea of "nucleophile basicity vs$.$ leaving group basicity" $($Hint: see Post Lecture B $-$ Question $1)$