X. REDOX Halfreacties
oxidatoren |
|
|
|
|
|
|
|
reductoren |
|
|
|
F2 |
+ |
2e- |
|
|
|
|
|
2F- |
|
|
|
H2O2 |
+ |
2H+ |
+ |
2e- |
|
|
|
2H2O |
|
|
|
PbO2 |
+ |
SO42 - |
+ |
4H+ |
+ |
2e- |
|
PbSO4 |
+ |
2H2O |
|
MnO4- |
+ |
8H+ |
+ |
5e- |
|
|
|
Mn2+ |
+ |
4H2O |
|
Au3+ |
+ |
3e- |
|
|
|
|
|
Au |
|
|
|
Cl2 |
+ |
2e- |
|
|
|
|
|
2Cl- |
|
|
|
Cr2O72- |
+ |
14H+ |
+ |
6e- |
|
|
|
2Cr3+ |
+ |
7H2O |
|
MnO2 |
+ |
4H+ |
+ |
2e- |
|
|
|
Mn2+ |
+ |
2H2O |
|
O2 |
+ |
4H+ |
+ |
4e- |
|
|
|
2H2O |
|
|
|
Br2 |
+ |
2e- |
|
|
|
|
|
2Br- |
|
|
|
NO3- |
+ |
2H+ |
+ |
e- |
|
|
|
NO2 |
+ |
H2O |
|
Ag+ |
+ |
e- |
|
|
|
|
|
Ag |
|
|
|
Fe3+ |
+ |
e- |
|
|
|
|
|
Fe2+ |
|
|
|
I2 |
+ |
2e- |
|
|
|
|
|
2I- |
|
|
|
MnO4- |
+ |
2H2O |
+ |
3e- |
|
|
|
MnO2 |
+ |
4OH- |
|
Cu2+ |
+ |
2e- |
|
|
|
|
|
Cu |
|
|
|
Cu2+ |
+ |
e- |
|
|
|
|
|
Cu+ |
|
|
|
S |
+ |
2H+ |
+ |
2e- |
|
|
|
H2S |
|
|
|
S4O62- |
+ |
2e- |
|
|
|
|
|
2S2O32- |
+ |
H2O |
|
2H+ |
+ |
2e- |
|
|
|
|
|
H2 |
|
|
|
SO42- |
+ |
2H+ |
+ |
2e- |
|
|
|
SO32- |
+ |
H2O |
|
Pb2+ |
+ |
2e- |
|
|
|
|
|
Pb |
|
|
|
Ni2+ |
+ |
2e- |
|
|
|
|
|
Ni |
|
|
|
PbSO4 |
+ |
2e- |
|
|
|
|
|
Pb |
+ |
SO42- |
|
Fe2+ |
+ |
2e- |
|
|
|
|
|
Fe |
|
|
|
S |
+ |
2e- |
|
|
|
|
|
S2- |
|
|
|
2 CO2 |
+ |
2H+ |
+ |
2e- |
|
|
|
H2C2O4 |
|
|
|
Zn2+ |
+ |
2e- |
|
|
|
|
|
Zn |
|
|
|
2H2O |
+ |
2e- |
|
|
|
|
|
H2 |
+ |
2OH- |
|
Al3+ |
+ |
3e- |
|
|
|
|
|
Al |
|
|
|
Mg2+ |
+ |
2e- |
|
|
|
|
|
Mg |
|
|
|
Al(OH)4- |
+ |
3e- |
|
|
|
|
|
Al |
+ |
4OH- |
|
Na+ |
+ |
e- |
|
|
|
|
|
Na |
|
|
|
Ba2+ |
+ |
2e- |
|
|
|
|
|
Ba |
|
|
|
Ca2+ |
+ |
2e- |
|
|
|
|
|
Ca |
|
|
|
K+ |
+ |
e- |
|
|
|
|
|
K |
|
|
|
Let op:
Hoe lager
hoe zwakker de oxidator
en:
Hoe lager,
hoe sterker de reductor