Cov txheej txheem:

Cov kev cai ntawm oxidation tooj yog dab tsi?
Cov kev cai ntawm oxidation tooj yog dab tsi?

Video: Cov kev cai ntawm oxidation tooj yog dab tsi?

Video: Cov kev cai ntawm oxidation tooj yog dab tsi?
Video: HMONG TV: 1/17/2023 RUSSIA TUA UKRAINE 2024, Kaum ib hlis
Anonim

Cov cai rau muab cov lej Oxidation

  • Lub rooj sib tham yog tias cov cation yog sau ua ntej hauv ib qho qauv, ua raws li cov anion.
  • Cov oxidation naj npawb ntawm ib lub caij dawb yog ib txwm 0.
  • Cov oxidation naj npawb monatomic ion sib npaug ntawm tus nqi ntawm ion.
  • Ib txwm oxidation naj npawb hydrogen yog +1.
  • Cov oxidation naj npawb cov pa oxygen hauv cov tebchaw feem ntau yog -2.

Hauv qhov no, xya txoj cai rau kev muab oxidation yog dab tsi?

Cov cai rau muab cov lej Oxidation rau cov ntsiab lus

  • Txoj Cai 1: Tus lej oxidation ntawm cov khoom hauv nws lub xeev dawb (tsis suav nrog) yog xoom - piv txwv li, Al(s) lossis Zn(s).
  • Txoj Cai 2: Tus lej oxidation ntawm monatomic (ib-atom) ion yog tib yam li tus nqi ntawm ion, piv txwv li:
  • Txoj Cai 3: Cov lej ntawm tag nrho cov lej oxidation hauv qhov nruab nrab yog xoom.

Ib yam li ntawd, tus lej oxidation ntawm o2 yog dab tsi? Cov oxidation xeev cov pa oxygen hauv nws cov tebchaw yog -2, tshwj tsis yog peroxides zoo li H2O2, thiab Na2O2, hauv cov oxidation xeev rau O yog -1. Cov oxidation xeev ntawm hydrogen yog +1 hauv nws cov tebchaw, tshwj tsis yog cov hlau hydrides, xws li NaH, LiH, thiab lwm yam. oxidation xeev rau H yog -1.

Ua li no, koj puas nco qab cov cai oxidation li cas?

1 Teb. Tsis muaj li ntawd txoj cai . Txoj kev zoo tshaj rau nco tus oxidation tus naj npawb ntawm ib qho ion lossis radical yog kom paub cov ntsiab lus lossis cov khoom sib xyaw uas lawv feem ntau koom nrog. Paub cov neeg koom tes koj yuav paub cov oxidation tus lej.

Tus lej oxidation ntawm co2 yog dab tsi?

Cov oxidation naj npawb ntawm C in carbon dioxide ( CO2 ) yog (cai 1 & 2): 0 + (2 x 2) = +4 [Khoom (txoj cai 3): +4 + 2(-2) = 0] The oxidation naj npawb ntawm C hauv methane (CH4) yog (txoj cai 1 & 2): 0 - (4 x1) = -4 [Khoom (txoj cai 3): -4 + 4 (-1) = 0].

Pom zoo: