https://doi.org/10.1351/goldbook.C01211
A
chemical reaction
for which the expression for the rate of disappearance
of a reactant (or rate of appearance
of a product) involves rate constants of more than a single elementary reaction
. Examples are 'opposing reactions
' (where rate constants of two opposed chemical reactions are involved), 'parallel reactions
' (for which the rate of disappearance
of any reactant is governed by the rate constants relating to several simultaneous reactions
to form different respective products from a single set of reactants), and stepwise reactions
.