:
M0 ne → M n +.
, , .
, , .
, . ,
Zn + Pb(NO3)2 = Zn(NO3)2 + Pb.
:
Zn + 2NaOH = Na2ZnO2 + H2↑
:
Zn + 2NaOH + 22 = Na2 [Zn(O)4] + H2↑.
. 1. , , , , - (HCl, H2SO4()).
. , , , H2S N2O :
Mg + H2SO4 () = MgSO4 + H2O + H2S,
Mg + HNO3 () = Mg(NO3)2 + H2O + N2O.
1
(LiAl) | (TiH) | ( ) | |
H2O | + H2 + H2 ( ) | ||
HCl | + H2 | ||
H2SO4 () | + H2 | ||
H2SO4 () | + H2O + * | ||
H2S | S | SO2 | |
HNO3 () ρ = 1,45 | + H2O + * | ||
NO | NO | NO2 | |
HNO3 () r = 1,2 | + H2O + * | ||
N2O | NO | NO | |
HNO3 (.) r = 1,0 | + H2O +NH4NO3 | ||
* , ; () , () |
.
, .
2Pb + O2 = 2PbO; Pb + O2 = PbO2.
( ) .
)
, . , , , .
|
|
, ( ), :
Cd + H2SO4 = CdSO4 + H2O + S;
Pb + H2SO4 = PbSO4↓ + H2O + S.
, , . , , , .
, , (. . ) . Al, Fe, Cr, Ni . , , , .
)
. . , :
2Al + 2HNO3 (. ) = Al2O3 + H2O + 2NO;
2Al + 6HNO3 ()= Al2O3 + 3H2O + 6NO2.
, , . HNO3 NO, NO2.
2
Zn | Al | Be | Cr | Fe | |
H2O | Zn(OH)2 | Al(OH)3 | Be(OH)2 | Cr(OH)2 | Fe(OH)2 |
H2SO4 () | BeSO4 | CrSO4 | FeSO4 Fe2(SO4)3 | ||
HNO3 () | Al2O3 | BeO | Cr2O3 | Fe2O3 |