Which of the Following Factors Will Affect the Rate of a Homogeneous

Multiple Choice

Which of the following factors will affect the rate of a homogeneous reaction?

A) the presence of a catalyst, and, if one is present, its concentration
B) the properties (particularly, molecular structure and bonding) of reactants and products
C) the concentrations of the reactants and sometimes the products
D) the temperature at which the reaction occurs
E) all of these