Question

In a certain reaction, molecules are moving faster and colliding more often as reactants turn into products. Which action is happening?(1 point)
Responses

Heat is being passed; the reaction is endothermic.
Heat is being passed; the reaction is endothermic.

Heat is being absorbed; the reaction is endothermic.
Heat is being absorbed; the reaction is endothermic.

Heat is being passed; the reaction is exothermic.
Heat is being passed; the reaction is exothermic.

Heat is being absorbed; the reaction is exothermic.

Answer 1

Heat is being passed; the reaction is exothermic.

Reason: The increased molecular speed and more frequent collisions indicate a temperature rise from heat released by the reaction (exothermic).