Nyob rau hauv chemistry, disproportionation, qee zaum hu ua dismutation, yog cov tshuaj tiv thaiv redox hauvuas ib lub tebchaw ntawm nruab nrab oxidation xeev hloov mus rau ob lub tebchaw, ib qho siab dua thiab ib qho ntawm qis oxidation xeev..
Lub sij hawm tsis sib haum yog dab tsi?
: kev hloov pauv ntawm cov tshuaj mus rau hauv ob lossis ntau qhov sib txawv ntawm cov tshuaj feem ntau yog los ntawm kev sib xyaw oxidation thiab txo.
Dab tsi yog qhov tsis txaus ntseeg redox cov tshuaj tiv thaiv nrog piv txwv?
Cov tshuaj tiv thaiv tsis sib xws yog thaum muaj ntau hom kab mob uas muaj feem cuam tshuam nrog lub xeev oxidation tshwj xeeb tau oxidized thiab txo qis hauv ob qhov kev sib cais ib nrab, ua rau ob qho khoom lag luam uas muaj tib lub ntsiab lus. Ib qho piv txwv yooj yim yog Mn2O3 dhau los ua Mn2+ thiab MnO2.
Koj paub li cas yog qhov kev tawm tsam tsis zoo?
Hint: Cov tshuaj tiv thaiv tsis sib xws yog thaum cov khoom siv oxidized thiab txo cov khoom sib txawv. Tshuaj xyuas tus lej oxidation ntawm cov ntsiab lus hauv cov tebchaw thiab muab piv rau ob sab.
Yuav ua li cas paub yog tias nws yog lub xeev redox?
Txoj cai lij choj hais txog Oxidation States
Rau qhov yooj yim (monoatomic) ion, lub xeev oxidation yog sib npaug rau cov nqi them ntawm ion Piv txwv li, Cl – muaj oxidation xeev ntawm -1. Thaum tam sim no nyob rau hauv feem ntau cov tebchaw, hydrogen muaj oxidation lub xeev ntawm +1 thiab oxygen lub xeev oxidation ntawm −2.
