16: :
*
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17: :
:
1. a,c, 2. a,b,d, 3. c,d,e 4. ,b,c, 5. a,d,e
18: :
*
*
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19: , :
*
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20: , . . һ, , . ?
*
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21: :
*
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22: :
* - ,
* ,
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23: :
50-
24: , :
:
1. a,b,c 2. a,c,e 3. a,c,d 4. a,b,d 5. c, d,e
25: , :
|
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* Na2C03,NaOH
* 04, NaCl
* 04, NaH2P04
* N, NaCl
* NaCl, NH3-H20
26: Ż :
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* -
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27: : , , . : , . :
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* 35
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28: 12- . ?
