True or False: The rate of chemical reactions is influenced by temperature, concentration, and size.

The statement is true because the rate of chemical reactions is indeed significantly influenced by temperature, concentration, and the size of the reactants.

Temperature plays a crucial role in chemical reactions; as temperature increases, the kinetic energy of the molecules also increases, leading to more frequent collisions between reactants. This often results in a higher reaction rate, as more collisions are likely to overcome the activation energy barrier.

Concentration affects reaction rates as well. A higher concentration of reactants typically leads to an increased number of molecules available for collisions, which enhances the probability of reaction events occurring. Therefore, as the concentration of reactants increases, the rate of reaction generally increases as well.

The size of the reactants, particularly in the context of solid reactants, matters because smaller particles have a larger surface area relative to their volume. This increased surface area allows for more collisions with other reactants, thereby increasing the reaction rate.

These three factors—temperature, concentration, and size—are fundamental to understanding how chemical reactions occur in both biological and chemical systems, making this statement accurate.