文档介绍：第四章非金属及其化合物第四节《硫酸、***和氨》教师:吴一骧 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 一、氨杭州市一制冷车间发生氨气泄漏 2004 年4月 20 日上午 10 时,杭州市一制冷车间发生氨气泄漏事件,整个厂区是白茫茫的一片,方圆数百米,空气中弥漫着一股浓烈的刺激性气味,进入厂区呼吸都感到困难。厂区内寒气逼人。市消防中心接到报案后立即制定方案,出动上百名消防队员,十余量消防车…… Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 游离态化合态氮的固定放电如: N 2 +O 2 2NO N 2 +3H 2 2NH 3人工固氮生物固氮高能固氮自然固氮氮的固定 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 【思考】 1 、为什么在氨气泄漏时工厂里会寒气逼人? 2 、如何吸收弥漫在空气中的大量氨气? 3、被围困在污染区的群众怎样做才能不吸入氨气? Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. ---- 氨气的喷泉实验实验 4—8: 演示实验 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 城市中常见的人造喷泉及火山爆发的原理与上述的原理相似。科学视野 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. (2)溶液为什么变为红色? (3)实验成败的关键是什么? (1)氨为什么会形成喷泉? 想想看: ; ; 。氨气溶于水溶液显碱性氨极易溶于水,使烧瓶内外形成较大的压差; Evaluation only. Evaluation only. Created with