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Zn+a ----->ZnCl₂+H₂
Zn+b------>ZnSO₄+H₂
a+NH₃---->c
a+NaOH---->e+d
a+AgNO₃----->e+g
a+CuO----->h+e
b+NaOH---->e+i
b+BaCl₂----->j+a
b+Caco₃----->Ca+e+CO₂
b+CaO---->K+e
URGENT!!!!!!

Răspuns :

Bunicaluiandrei
a = HCl;    b = H2SO4;     c = NH4Cl    e = H2O     d = NaCl    g= AgCl  f = HNO3
h = CuCl2     i = Na2SO4     j = BaSO4       k = CaSo4


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