部分化学方程式书写

正确书写下列化学反应方程式并计算前3个反应各物质的质量比：

1、实验室用纯净物

制氧气                                                            

 

2、实验室不用加热

制氧气                                                            

 

3、实验室用固体混

合物制氧气                                                        

 

4、带火星的小木条

复燃的反应                                                         

5、向澄清石灰水吹

气，石灰水变浑浊                                                   

6、电解水

                                                                                                             

7、产生大量白烟的

反应                                                                

8、生成有刺激味气

体的反应                                                            

9、细铁丝在氧气中

燃烧的反应                                                                                               

10、镁条在空气中

燃烧                                                               

11、氢气燃烧爆炸

                                                                   

12、氧化汞受热分解

                                                                      

13、铁钉浸入硫酸铜

溶液中                                                          

14、稀盐酸中加入

碳酸钠粉末                                                     

15、石灰石中加入

稀盐酸                                                         

16、硫酸铜溶液中滴加

氢氧化钠溶液