Răspuns:
II.
2NaCl+H2SO4 =>Na2SO4 +2H2O
CuSO4 +2KOH =>Cu(OH)2+K2SO4
ZnO+2HNO3 => Zn(NO3)2+H2O
2Ca+O2=>2CaO
2Al+3Cl2=>2AlCl3
CuO+2HCl =>CuCl2 +H2O
NiCl2+ 2NaOH => Ni(OH)2+2NaCl
2Al+3S=>Al2S3
III.
MgO+2HCl => MgCl2 + H2O
2Li+2HNO3 =>2 LiNO3 +H2
2Na+2H2O => 2NaOH +H2
Ca(OH)2+2HNO3 => Ca(NO3)2+2H2O
