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30、(共22分,每空2分)

Ⅰ、(12分,每空2分)

(1)                                                                      

(2)___________,___________,                                            

(3)___________,                                                        

Ⅱ、(10分,每空2分)

              

                   

                             

                                                                        

                     

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29、方案一:

(1)___________________________________________________________

(2)____________________________________________________________

(3)________________________________, ____________________________________

(4)____________        _______                                   ______
方案二:
(1)____________________________________。
(2)_________________, ______________________________________          
(3)____________________________________________                        

 

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       28、(1)A                       E                    H                 

(2)            

       (3)                                 

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26、(1)C元素的名称__________________________________
(2)___________________________________________
(3)__________________              ____    ___
(4)①____________, ________mL, _________mL。
②________, _____   ___mL, ___________mL。
27、⑴__________________    ____

⑵_________________________     ____  _____________________________________

⑶______________   _________________  _____________ _______________    ____

⑷_____________________________________________

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25、

 

 

 

 

 

 

 

 

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24、

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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23、

 

 

 

 

 

 

 

 

 

 

 

 

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(2)请在方框内画出电路图.

 

 

 

 

 

 

    (3)                (4)           

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0.41

 

(2)          

 II、(1)                             

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0.90

 

 

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