Respuesta :
D. A ll of the above. catalyst reduces the activation energy thereby making the reaction faster. an increase in temperature increases the kinetic energy and no of collisions making reaction faster for an endothermic reaction while decrease in temperature favors an exothermic reaction.
increase in concentration increases the molecules reacting so the reaction is faster and vice versa.
increase in concentration increases the molecules reacting so the reaction is faster and vice versa.
The following that affects the rate of a chemical reaction is the presence of catalyst, temperature, and concentration of reactant. The correct option is D.
What is the rate of a reaction?
The rate of reaction is the speed of the reaction at which a reaction takes place.
The catalyst increases the rate of reaction.
The increase in temperature increases the rate of reaction.
Thus, the correct option is D. all of the above.
Learn more about the rate of a reaction
https://brainly.com/question/8592296