Question

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Answer 1

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: