:
0 + H2O → Me(OH)x + H2
- (HCl, H2SO4.):
0 + HxAn → MexAny + H2
- , - 0 (0/=0). , - - , - (0/) .
, , , - .
5: . , . , .
. , - 0. - 0(Zn2+/Zn) = -0,76.
= . . = 0(+/) - 0(Zn2+/Zn) = 0 (-0,76) = +0,76.
.
, , . . Zn(OH)2 . .
6: . , . , .
. (-) , - 0. - 0(Zn2+/Zn) = -0,76.
= . . = 0(+/) - 0(Zn2+/Zn) = 0 (-0,76) = +0,76.
, .
, , . - . ZnCl2 .
Zn + 2HCl = ZnCl2 + H2
1| Zn 2e = Zn2+;
1| 2H+ + 2e = H2;