Question

Ajutati ma va rog! Dau coroana!

Answer 1

4.1.
NH4OH    =   NH3      +    H2O                                                                                    hidroxid        amoniac       apa
de amoniu
N2   + 3 H2     =2NH3                                                                                                                                        azot       hidrogen      amoniac
2H2      +    O2        =     2 H2O                                                                                    hidrogen    oxigen          apa
  C    +       O2         =      CO2                                                                                       carbon      oxigen          dioxid de carbon

 2 Hg  +  O2   ----------->  2  HgO------------>2Hg   +   O2



4.2.    A             B          C
 
 2 KClO3 =2KCl + 3O2                                                                                                 2H2O    =     2H2 +O2                                                                                               2HgO       =    2 Hg     + O2

4.3

     CuCO3 =CuO +CO2
 2  HCl = H2 + Cl2
   NH4 Cl =NH3 + HCl
   2HgO =2Hg +O2
  2 KClO3 =2KCl +3O2