Question

A cold pack is snapped, and the chemical reaction causes the pack to feel cold. Which kind of reaction is this? (1 point)
Responses

This is an exothermic reaction because the system took energy from the surroundings.
This is an exothermic reaction because the system took energy from the surroundings.

This is an endothermic reaction because the system took energy from the surroundings.
This is an endothermic reaction because the system took energy from the surroundings.

This is an exothermic reaction because the surroundings took energy from the system.
This is an exothermic reaction because the surroundings took energy from the system.

This is an endothermic reaction because the surroundings took energy from the system.
This is an endothermic reaction because the surroundings took energy from the system.

Answer 1

This is an endothermic reaction because the system (the reaction in the pack) absorbs heat from the surroundings, making the pack feel cold.