Final answer:
The factors that affect the reaction rate of a chemical reaction are the concentration of reactants, pressure (in the case of a gas), surface area, and temperature.
Step-by-step explanation:
The factors that affect the reaction rate of a chemical reaction are the concentration of reactants, pressure (in the case of a gas), surface area, and temperature. Concentration of reactants and pressure increase the collision rate between molecules, leading to a higher reaction rate. Increasing the surface area exposes more reactant molecules to potential collisions, increasing the chance of successful collisions. Temperature increases the kinetic energy of molecules, resulting in more frequent and energetic collisions.