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1、雕花玻璃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 for .N
2、ET 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.在玻璃表面涂上一层石蜡Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.Slides fo
3、r .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.在石蜡上雕刻出花纹，向 挖空部分加少量氢氟酸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 200
4、4-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.洗掉酸并去掉石蜡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.授课人：范
5、文秀学号：20092401121普通高中课程标准实验教科书 化学 必修1第四章第一节第一课时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.1、SiO2与氢氟酸的反应二氧化硅的化学性质 S
6、iO2 + 4HF=SiF4+ 2H2O 有毒氢氟酸是惟一可以反应的酸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.此外，SiO2还具有哪些化学性质？二氧化硅的化学性质 水晶摆件大多玲珑
7、剔透，是装点现 代生活、提高生活品位的时尚物品 。水晶性脆，注意防重压，防摔， 防高温，防强碱和防氢氟酸。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.与碱作用只生成盐和水 或能与水作用
8、生成酸或 与碱性氧化物反应生成 盐的氧化物 二氧化硅的化学性质 SiO2 +2NaOH=Na2SiO3 + H2O酸性氧化物黏合剂2、SiO2与强碱的反应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 P
9、ty Ltd.联系类比CO2二氧化碳CO2二氧化硅SiO2物质质分类类 与水反应应与碱反应应与碱性氧化 物反应应与酸反应应均属于酸性氧化物CO2 CaOCaCO3CaOSiO2 CaSiO3高温CO2 2NaOHNa2CO3+H2OSiO2 2NaOHNa2SiO3+H2OCO2 H2OH2CO3不反应SiO2 + 4HF =SiF4 + 2H2O（雕刻玻璃）不反应Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspose.
10、Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.小结 二氧化硅的化学性质（很不活泼）（1）特性：与氢氟酸反应（惟一可反应酸） SiO2+HF=SiF4 +2H2O（2）酸性氧化物：与强碱反应生成盐和水：SiO2+2NaOH=NaSiO3+H2O 与碱性氧化物反应生成盐：SiO2+CaO=CaSiO3 高温有毒Evaluation only.Evaluation only. Created with Aspose.Sl
11、ides 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.10928约180Si OSiO2是正四面体的空间网状结构二 氧 化 硅 结 构Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profi
12、le 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.结构与性质的关系：结构与性质的关系：SiOSiO2 2的网状结构的网状结构化学性质化学性质：很稳定（化学性质：很稳定（化学性质 很不活泼）很不活泼）Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client P
13、rofile 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.为什么实验室中盛放碱液的试 剂瓶要用橡皮塞而不能用玻璃 塞（玻璃中有SiO2）？学以致用 Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created wi
14、th Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.知识拓展如果实验中不小心将玻璃塞塞在装有 NaOH溶液的试剂瓶中，导致塞子与瓶 黏在一起，该如何打开？（预习硅酸盐的相关知识）Evaluation only.Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Created with Aspo
15、se.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 Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd.Copyright 2004-2011 Aspose Pty Ltd.
