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Which of the following factors does NOT affect the rate o...

Which of the following factors does NOT affect the rate of a chemical reaction?

A.

Concentration of reactants

B.

Presence of a catalyst

C.

Molecular weight of products

D.

Temperature

Correct answer is C

The molecular weight of products is not directly related to the rate of a chemical reaction. The factors that affect the reaction rate include concentration of reactants, temperature, presence of catalysts, surface area, and the nature of the reactants and products.