Răspuns:
1
Na2O + H2O = 2NaOH(b.s.)
2NaOH(b.s) + CuCl2 = Cu(OH)2(b.i.) + 2NaCl
CaO + H2O = Ca(OH)2(b.s)
Ca + 2H2O = Ca(OH)2(b.s) + H2
2K + 2H2O = 2KOH(b.s) + H2
Ca(OH)2(b.s) + CO2 = CaCO3 + H2O
2
NaOH + HCl = NaCl + H2O
2NaOH + H2SO4 = Na2SO4 + 2H2O
NaOH + HNO3 = NaNO3 + H2O
Cu(OH)2 + 2HCl = CuCl2 + H2O
Cu(OH)2 + H2SO4 = CuSO4 + 2H2O
Cu(OH)2 + 2HNO3= Cu(NO3)2 + 2H2O
3
Ca+O2=CaO
CaO+H2O=Ca(OH)2
Са(ОН)2 + 2НCl = СаCl2 + 2Н2О
Că(OH)2 + CO2 = CaCO3 + H2O
Explicație:
