求翻译：这个反应是放热反应。是什么意思？

This reaction is exothermic.

The underlying reason for that is because each different type of energy, water molecules elements between type of destructive energy is needed, and weak iron atoms formed between the atoms destructive energy is needed, so I jumped at room temperature type can be reached by terrorists, the liquid ...

This response is the exothermic reaction.

This reaction is Exothermic.