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