20. What are the enzymatic mechanism using chymotrypsin model. (including close proximity and proper orientation, acid-base catalysis, covalent catalysis,
stabilization of transition state and decrease the reaction's AGE.)

It is sure ( overimitation)

Answerit curves up and levels out.explanationwe assume that the container contains absolutely no ammonia to begin with as it states that "nitrogen gas and hydrogen gas" react to "produce ammonia."at dynamic equilibrium, the product and reactant concentrations are equal.this means that, starting from a concentration of zero, [nh₃] must curve "up" from zero and then level out to a constant concentration.

Answerthe same as;

Answer(d) unstable compounds that convert to acetals in the presence of alcohol and an acid; (b) semiacetals produced by alcohol subtraction from ketone;