electrical energetic exothermic endothermic
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: In a laboratory procedure, students added sodium hydroxide crystals to a beaker of water and allowed the resulting solution to cool. Based on this information, which type of chemical process most likely occurred?
Possibilities:
- electrical
- energetic
- exothermic
- endothermic

exothermic