Categorie: Referate ChimieReferat downloadat de: 340 ori.
Cauta referat dupa: zaharidele
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| ZAHARIDE Oxidarea glucozei CH=O |O| COOH (CH-OH)4 ( (CH-OH)4 CH2-OH CH2-OH Oxidarea glucozei cu reactiv Tollens AgNO2 + NaOH ( AgOH + NaNO3 AgOH + NH3 ( [Ag(NH3)2]OH C+1H+1=O-2 C+3O-2O-2H- 1 (CH-OH)4 + 2[Ag+1(NH3)[pic]]OH-1 ( (CH-OH)4 + 4NH3 + 2Ag0 + H2O CH2-OH CH2-OH 1 C+1 -2 e > C+3 agent reducator 2 Ag+1 +1 e > Ag0 agent oxidant Oxiadarea cu reactiv Fehling CuSO4 + 2KOH ( Cu(OH)2 + K2SO4 C+1H-1=O-2 C+3O-2O-2H+1 (CH-OH)4 + 2Cu+2(OH)2 ( (CH-OH)4 + Cu[pic]O + 2H2O CH2-OH CH2-OH C+1 -2 e >C+3 Cu+2 2(+1 e) >Cu+1 Mod de lucru Oxidare cu reactiv Tollens Se amestec |
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| 12 | ACIZI BAZE SARURI | 1875 |
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| 14 | AURUL SI ALTE PIETRE PRETIOASE | 2613 |
| 15 | Acidul sulfuric | 2420 |
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| 17 | Acizi si baze | 1502 |
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| 19 | Acizi | 1416 |
| 20 | Acizii si Bazele | 1389 |
| 21 | Alchine | 1325 |
| 22 | Alcoolii | 1449 |
| 23 | Alcoolul etilic carburant | 1961 |
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| 25 | Alcoolul | 1704 |