Qhov sib txawv tseem ceeb ntawm metathesis thiab redox cov tshuaj tiv thaiv yog tias hauv cov tshuaj tiv thaiv metathesis, kev sib pauv ntawm ob hom ionic ntawm ob lub molecules tshwm sim thaum, hauv cov tshuaj tiv thaiv redox, kev sib pauv ntawm electrons ntawm ob hom tshuaj tshwm sim.
Metathesis thiab redox cov tshuaj tiv thaiv yog ob hom tshuaj tiv thaiv. Tab sis lawv muaj cov txheej txheem sib txawv. Metathesis yog cov tshuaj tiv thaiv ib-kauj ruam, qhov tshuaj tiv thaiv redox muaj ob qho tib si ib nrab ntawm cov kev xav tau rau cov txheej txheem pauv hluav taws xob.
Metathesis yog dab tsi?
Metathesis lossis ob qhov kev hloov pauv hloov pauv yog ib hom tshuaj tiv thaiv uas muaj kev sib pauv ntawm ob hom ionic ntawm ob lub molecules tshwm sim. Cov qauv dav dav yog raws li hauv qab no:
A-B + C-D ⟶ A-C + B-D
Daim ntawv cog lus uas tawg thiab tsim thaum lub sijhawm cov tshuaj tiv thaiv no tuaj yeem yog ionic lossis covalent bonds. Qee qhov piv txwv ntawm cov tshuaj tiv thaiv no muaj xws li nag lossis daus, cov tshuaj tiv thaiv acid-puag, alkylation, thiab lwm yam.
Hauv qhov sib npaug saum toj no, A thiab C Cheebtsam ntawm txhua tus reactant tau hloov lawv qhov chaw. Feem ntau, cov tshuaj tiv thaiv no tshwm sim hauv cov tshuaj aqueous. Tsis tas li ntawd, peb tuaj yeem faib cov kev cuam tshuam no raws li hauv qab no;
- nag xob nag cua tshwm sim - Cov ntaub ntawv nag lossis daus thaum kawg ntawm cov tshuaj tiv thaiv. Piv txwv li, cov tshuaj tiv thaiv ntawm cov nyiaj nitrate thiab sodium chloride ua cov nyiaj chloride precipitate thiab aqueous sodium nitrate.
- Neutralization cov tshuaj tiv thaiv - Cov kua qaub neutralizes raws li cov tshuaj tiv thaiv nrog lub hauv paus. Piv txwv li, cov tshuaj HCl (acid) tuaj yeem ua rau nruab nrab ntawm cov tshuaj NaOH (piv txwv).
Daim duab 01: Ib qho piv txwv ntawm Kev Tawm Tsam Tawm Ob Qhov
Redox Reaction yog dab tsi?
Redox cov tshuaj tiv thaiv yog ib hom tshuaj tiv thaiv uas oxidation thiab txo ib nrab-reactions tshwm sim ib txhij. Hauv cov tshuaj tiv thaiv no, peb xav txog oxidation thiab txo qis raws li cov txheej txheem ntxiv. Ntawm no, oxidation yog qhov poob ntawm electrons lossis nce hauv lub xeev oxidation thaum txo yog qhov nce ntawm electrons lossis txo qis ntawm oxidation xeev.
Daim duab 02: Mechanism for Oxidation and Reduction Reactions
Tsis tas li ntawd, tus nqi ntawm cov tshuaj tiv thaiv redox tuaj yeem sib txawv los ntawm cov txheej txheem qeeb heev xws li xeb mus rau cov txheej txheem ceev xws li roj hlawv.
Dab tsi yog qhov zoo sib xws ntawm Metathesis thiab Redox Reactions?
- Metathesis thiab redox cov tshuaj tiv thaiv yog tshuaj lom neeg uas cov khoom sib txawv ntawm cov reactants.
- Ob qhov kev cuam tshuam cuam tshuam nrog kev sib pauv ntawm qee yam ntawm cov reactants los muab cov khoom lag luam. Piv txwv li kev pauv ntawm electrons, tshuaj moieties.
- Cov tshuaj tiv thaiv no suav nrog ob qho kev tawm tsam ntxiv. E.g. oxidation-txo cov tshuaj tiv thaiv hauv cov tshuaj tiv thaiv redox, daim ntawv cog lus tawg-kev sib koom ua ke hauv cov tshuaj tiv thaiv metathesis.
Qhov txawv ntawm Metathesis thiab Redox Reactions yog dab tsi?
Metathesis thiab redox cov tshuaj tiv thaiv yog ob hom tshuaj tiv thaiv. Qhov sib txawv tseem ceeb ntawm metathesis thiab redox cov tshuaj tiv thaiv yog tias hauv cov tshuaj tiv thaiv metathesis, kev sib pauv ntawm ob hom ionic ntawm ob lub molecules tshwm sim thaum, hauv cov tshuaj tiv thaiv redox, kev sib pauv ntawm electrons ntawm ob hom tshuaj tshwm sim. Ib qho kev hloov pauv ob zaug lossis metathesis yog cov tshuaj tiv thaiv ib kauj ruam, tab sis cov tshuaj tiv thaiv redox muaj ob qhov sib npaug ib nrab ntawm cov kev xav tau rau cov txheej txheem pauv hluav taws xob. Ntxiv mus, oxidation lub xeev ntawm atoms yuav tsum hloov thaum lub sij hawm ib tug redox tshuaj tiv thaiv tab sis, nyob rau hauv metathesis cov tshuaj tiv thaiv, nws yuav los yog yuav tsis hloov.
Hauv qab infographic qhia txog qhov sib txawv ntawm metathesis thiab redox cov tshuaj tiv thaiv.
Summary – Metathesis vs Redox Reactions
Metathesis thiab redox cov tshuaj tiv thaiv yog ob hom tshuaj tiv thaiv. Qhov sib txawv tseem ceeb ntawm metathesis thiab redox cov tshuaj tiv thaiv yog tias hauv cov tshuaj tiv thaiv metathesis, kev sib pauv ntawm ob hom ionic ntawm ob lub molecules tshwm sim thaum, hauv cov tshuaj tiv thaiv redox, kev sib pauv ntawm electrons ntawm ob hom tshuaj tshwm sim. Tsis tas li ntawd, metathesis yog cov tshuaj tiv thaiv ib-kauj ruam, qhov tshuaj tiv thaiv redox muaj ob qho tib si ib nrab ntawm kev xav tau rau cov txheej txheem pauv hluav taws xob.
