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27 , 3,36 .(.). 4 . .
    #1   27 2012 22:31   : 10 , 1  
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  #2   28 2012 10:40  

 

75

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  25 2020 13:04  
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, . : 50 18% 1,2/. 9,2. ., :6H5OH + NaOH = C6H5ONa + H2O, C2H5OH + NaOH - . : 2C6H5OH +…
  05 2012 20:11  
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, 4,48 . ?
26H5OH+2Na=2C6H5ONa+H2
  04 2016 22:20  
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66. 25 (ω =0,40, =1,41 /), ω =0,02?
  12 2015 23:15  
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1)3Ba(OH)2 + 2H3PO4 = Ba3(PO4)2↓ + 6H2O
2) + HNO3 → KNO3 + 2
3)HNO3 + NH4OH → NH4NO3 + H2O
4)l+NaOH = NaCl + 2
5)NH3 + HN3 = NH4N3
6)H2SO4 + 2KOH = K2SO4 + 2H2O
7)3KOH + H3PO4 =K3PO4 +3H2O
?
  09 2011 18:50  
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