3.
Na2O + H2O --> 2NaOH , o baza
CO2 + H2O --> H2CO3, acid
SO3 + H2O --> H2SO4, acid
P2O5 + H2O --> H3PO4, acid
CaO + H2O --> Ca(OH)2, baza
Li2O + H2O --> 2LiOH, baza
oxizii metalici (oxizi bazici) cu apa = baze
oxizii nemetalici (oxizi acizi) cu apa = acizi
4.
oxiacid
CO2+H2O--> H2CO3
CaCO3+2HCl --> CaCl2 + H2CO3
sare
CuO+2HCl-->CuCl2+H2O
NaOH+HCl-->NaCl+H2O
Ca(OH)2+H2SO4-->CaSO4+2H2O
Baza
MgO+H2O--> Mg(OH)2
2K+ 2H2O--> 2KOH + H2
Hidracid
Cl2+H2-->2HCl
reactii de neutralizare sunt cele dintre un acid+baza sau oxid metailc + acid
MgO+H2O--> Mg(OH)2
CuO+2HCl-->CuCl2+H2O
NaOH+HCl--> NaCl+H2O
Ca(OH)2+H2SO4 --> CaSO4+2H2O
