Do Reactions Need to Involve Intermediates?

Remember, the overall rate law must be determined by experiment. Therefore, the rate law must contain no reaction intermediates.

Do reaction mechanisms involve intermediates?

Summary. A reaction mechanism is the sequence of elementary steps by which a chemical reaction occurs. ... A reaction intermediate is a chemical species that is formed in one elementary step and consumed in a subsequent step. The slowest step in a reaction mechanism is known as the rate-determining step.

What do intermediates do in a chemical reaction?

A reaction intermediate or an intermediate is a molecular entity that is formed from the reactants (or preceding intermediates) and reacts further to give the directly observed products of a chemical reaction. Most chemical reactions are stepwise, that is they take more than one elementary step to complete.