In a certain reaction, molecules are moving faster and colliding more often as reactants turn into

products. Which action is happening?(1 point)
Heat is being absorbed; the reaction is endothermic.
Heat is being passed; the reaction is exothermic.
Heat is being passed; the reaction is endothermic.
Heat is being absorbed; the reaction is exothermic.

1 answer

In a reaction where molecules are moving faster and colliding more often as reactants turn into products, it indicates that energy is being added to the system, which increases molecular motion. This scenario corresponds to an endothermic reaction, where heat is absorbed from the surroundings.

Thus, the correct answer is: Heat is being absorbed; the reaction is endothermic.