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[例2] 原硅酸的分子结构为,它在水溶液中不稳定,

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4.光导纤维:(1)成分               

(2)特点                                                        

(3)用途                                                        

.【例题解析】

 [例1] 药爆炸的瞬间,可以产生400000atm的超高压和5000℃的超

高温,完全能达到石墨转化成金刚石的条件,你认为将炸药放在水槽

内的最主要原因是                                     (  )

A.形成高压条件                 B.吸热降低温度

C.防止碳粉燃烧                 D.溶解爆炸产生的气体

解题思路:                                          

易错点:                                             

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 3.高温结构陶瓷:(1)优点                                        

  (2)种类:氧化铝陶瓷                                          

氮化硅陶瓷                                          

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2.特性:(1)                      、(2)                          

       (3)                      、(4)                         

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1. 分类:(1)传统:                                              

        (2)新型:                                              

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    加入石膏的作用                                             

   具有水硬性的原因                                            

玻璃:原料                                                   

     反应原理                                                

                                                              

     化学成分                                                

     特种玻璃的制备方法和用途                                

                                                        

陶瓷:原料               、种类                             

(3)硅酸盐组成的表示方法                                     

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5.硅酸盐:

(1)Na2SiO3:俗称           、用途                            

(2)硅酸盐工业:

水泥:原料                ;化学组成                          

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4. 硅及其化合物的性质及转变关系如图

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3.硅酸:(1)组成                                               

(2)特性                                                      

(3)制法                                                      

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