《高中化学总复习硫和氮的氧化物课件新人教必修》由会员分享，可在线阅读，更多相关《高中化学总复习硫和氮的氧化物课件新人教必修（68页珍藏版）》请在金锄头文库上搜索。
1、 硫和氮的氧化物Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides fo
2、r .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 一、硫、二氧化硫、亚硫酸、三氧化硫 1硫：硫是一种粉末，在空 气中燃烧生成SO2： SO2 SO2 2(1)二氧化硫的物理性质 二氧化硫是色、具有气味的有毒 气体，密度比空气 ；易液化，易溶于 水，常温常压下1体积水大约能溶解体 积SO2。黄色或淡黄色无刺激性
3、大40Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides for .NE
4、T 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. (2)二氧化硫的化学性质 将SO2通入下列溶液，将发生的现象及有关化学反应方 程式以及SO2所表现的性质填入下表：Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client
5、 Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profil
6、e 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspo
7、se Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. (3)SO2的实验 室制法 用Cu和浓H2SO4反应，化学方程式为： 用Na2SO3固体和浓H2SO4(60%)反应
8、，化 学方程式为： 3亚硫酸 (1)亚硫酸是一种不稳定的二元弱酸，只能 存在于溶液中，电离方程式为： (分 步书写)。Cu2H2SO4(浓浓) CuSO4SO22H2ONa2SO3H2SO4=Na2SO4SO2H2OEvaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty L
9、td.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. (2)不稳定性： (3)H2SO3中S元素为4价，与SO2具有
10、某 些相似的性质：漂白性与SO2相似。 氧化性，如与H2S反应： 还原性，如被Cl2氧化： 被空气中O2氧化：2H2SSO2=3S2H2OH2SO3Cl2H2O=H2SO42HClO22H2SO3=2H2SO4Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.
11、Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 4亚硫酸盐 (1)亚硫酸盐中硫元素化合价为价，与 SO2具有某些相似
12、的性质。 (2)在酸性条件下表现氧化性 Na2SO3和Na2S在酸性条件下(如HCl)不共存 ，离子方程式为：4 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation on
13、ly.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. (3)还原性(被O2、Cl2氧化) 在空气中被氧化的方程式为 ； 被Cl2氧化的方程式为2Na2SO3O2=2Na2SO4Na2SO3H2OCl2= Na2SO42
14、HCl溶解 褪色 红 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides
15、 for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd. 5三氧化硫 (1)物理性质：通常情况下，三氧化硫是一 种无色易挥发 的体，熔点为16.8 ，沸点为44.8。 (2)化学性质：SO3能强烈吸水，在空气中 发“烟”，与水剧烈反应生成H2SO4，同时 放出大量的热，形成酸雾，化学方程式为 ：。SO3是硫酸的酸
16、酐， 具有酸性氧化物的通性。因其中的硫为 价，故SO3具有较强的氧化性。固SO3H2O=H2SO46Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Pr
