Answer:
A)An elementary step reaction
B) Molecularity
C) Mechanism of reaction
D.)Balance chemical equation
Step-by-step explanation:
Molecularity is the number of molecules that react in an elementary reaction which is equal to the sum of stoichiometric coefficients of all reactants that participate in the elementary reaction.The reaction can be unimolecular or bimolecular depending on the number of molecules.
Mechanism of reaction reffered to the step by step sequence of elementary reactions through which the overall chemical reaction change occurs. It gives detail of the reaction in each stage of an overall chemical reaction.
An elementary step reaction reffered to is one step of reaction among the series of simple reactions that show how reaction is progressing at the molecular level.