![]() Hvor kommer rust fra?
|
|
About 23
Just In
Discover the world from a different angle.
Here's a crop of the latest photos from the around the world. |
Popular photos right now |
4 comments so far...
4e− + O2 + 2H2O → 4OH−
Fe2+ + 2OH− → Fe(OH)2
4Fe(OH)2 + O2 → 2(Fe2O3.xH2O) + 2H2O