Deducing information about reaction mechanisms from a... Study the following reaction energy diagram: energy reactants products Then answer the following questions about the chemical reaction. release Does this reaction release or absorb energy? absorb neither How many transition states occur during this reaction? yes Could this be an elementary reaction? O no . If you said this reaction could not be elementary, then how many steps are in its mechanism? If you said this reaction could not be elementary, then enter the number of the step in its mechanism which is rate- determining. For example, if the first step is the rate- determining step, enter "1" here.