human
Is a reaction exothermic if it gives off heat and light, or if the solution becomes cooler after mixing?
gpt
A) The reaction is exothermic because heat and light are given off. B) The reaction is endothermic. Energy is absorbed by the reaction, making the solution feel cooler.
Explanation: Exothermic reactions release energy, such as heat and light, whereas endothermic reactions absorb energy, making the surroundings feel cooler.