| Data | Temat |
|---|---|
| 2007-02-19 18:38 |
trypalmitynian glicerolu
|
| 2006-12-08 15:49 |
CO TO SĄ IZOMERY!!!
|
| 2006-12-06 16:07 |
Konkurs Chemiczny
|
| 2006-12-05 08:01 |
Chemia
|