barium monoxide

例句：

1. 1.The chemical reaction of barium monoxide with water produces hydrogen gas and barium hydroxide.
   钡氧化物与水的反应产生氢气和氢氧化钡。
2. 2.In the laboratory, barium monoxide is used as a reagent to test for trace amounts of iodine.
   在实验室中，钡氧化物用作试剂来检测碘的微量。
3. 3. The compound barium monoxide is widely used in the production of fertilizers and pesticides.
   这种化合物钡氧化物广泛用于肥料和农药的生产。