13．碳酸氢氨受热分解_____________________________________________

12．氯化氨受热分解_______________________________________________

11．氨气被催化氧化_______________________________________________

10．氨气和氯化氢反应_____________________________________________

9．　 氨水受热分解_________________________________________________

8．　 氨气溶于水___________________________________________________

7．　 磷在氯气中燃烧_______________________________________________

6．　 五氧化二磷溶于热水___________________________________________

5．　 白磷在氧气中燃烧_____________________________________________

4．　 一氧化氮被氧气氧化___________________________________________