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FAQ

⇐ 123 ⇒



1      
2 SiO2, %      
3 . SiO2      
4 .      
5      
6 -      
7      
8      
9 -      

10

-:

- , /3

- ,

- ,

     
     
     
11 -      

 

3 ()

1      
2 SiO2, %      
3 . SiO2      
4 .      
5      
6 -      
7      
8      
9 -      

10

-:

- , /3

- ,

- ,

     
     
     
11 -      

 


 

3

 

: -

: - .

:

1) ;

2) ;

3) -

( ..).

:

1. . .

2. . .

3. (4 ). 4 - ( . 1 2 ).

 

1. :

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2. .

( ) - _________________________________

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() - ________________________________________________

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3. - ( ).

4

1    
2    
3    
4    
5    
6    
7    
9 -    

10

:

- , /3

- ,

- ,

   
   
   
11    

 

4 ()

1    
2    
3    
4    
5    
6    
7    
9 -    

10

:

- , /3

- ,

- ,

   
   
   
11    

 


 

4

 

: -

: - .

:

1) 1 ;

2) 2 ;

3) 3 ;

4) ; 3% HCl;

5) - ( ..).

1.

:

1. , .

2. .

3. . . 5 ( .).

4. . 6 .

5. (4-5 ). 7 - ( . 1, 2 . 1 ).

2.

:

1. . .

2. . .

3. (6-7 ). 8 - ( . 3, 4 . 1 ).

 

1.

1. , :

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2. :

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3. .( ).

5

⇐ 123 ⇒


:

: 2018-10-14; !; : 375 |

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, .
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