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CaO + ? = Ca(NO3)2
? + Cu(OH)2 = CuCl2 + ?
H2SO4 + ? = NaSO4 + ?
H2So4 + ? = BaSO4 + ?
HCl + ? = AgCl + ?


Răspuns :

2HCl + Cu(OH)2 = CuCl2 + 2H2O
H2SO4+ 2NaOH = Na2SO4 + 2H2O
H2SO4 + Ba(OH)2 = BaSO4 + 2H2O
HCl + AgOH = AgCl + H2O

CaO + 2 HNO3 = Ca(NO3)2 + H2O
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
H2SO4 + Ba(OH)2 = BaSO4 + 2 H2O
HCl + AgOH = AgCl + H2O