Use the scenario to answer the question.
A student has a balloon filled with hydrogen gas. While wearing safety gear, they hold a flame up to the balloon. It explodes with a loud bang and creates a fireball.
Is this an endothermic or exothermic reaction, and why?
(1 point)
Responses
Endothermic, because it took only a little energy to cause the reaction.
Endothermic, because it took only a little energy to cause the reaction.
Endothermic, because light and heat were emitted.
Endothermic, because light and heat were emitted.
Exothermic, because light and heat were emitted.
Exothermic, because light and heat were emitted.
Exothermic, because it took a lot of energy to cause the reaction.
Exothermic, because it took a lot of energy to cause the reaction.
Exothermic, because light and heat were emitted.
The correct answer is: Exothermic, because light and heat were emitted.
In this scenario, the explosion of the balloon filled with hydrogen gas releases both light and heat. This indicates an exothermic reaction, which means that energy is being released into the surroundings. The fact that it took only a little energy to cause the reaction does not determine whether it is endothermic or exothermic.