Yuav ua li cas yog iAd nyob rau hauv niaj hnub Science News for KIDS?

Wb tham txog dab tsi lub ISI nyob rau hauv lub inorganic thiab organic synthesis.

txheej txheem txhais

Nyob rau hauv redox tshua koom nrog xws dab raws li ib tug tshwm sim ntawm uas yuav hloov lub oxidation lub xeev ntawm ob los yog ntau tshaj tshuaj ntsiab nyob rau hauv txoj los yog yooj yim tshuaj.

Yuav ua li cas yog lub oxidation

By xws lub oxidation ntawm cov tshuaj cov tshuaj tiv thaiv, nyob rau hauv uas ua ib lub atom los yog ion loses electrons, yog li txos nws cov thawj oxidation tooj. Qhov no tus txheej txheem yog cov yam ntxwv ntawm cov hlau.

Yuav ua li cas yog qhov rov qab

Nyob rau hauv lub rov qab los txheej txheem yuav muaj tshuaj transformation, uas ua nyob rau hauv lub degree ntawm oxidation yuav txo tau cov ion los yog ib tug yooj yim tshuaj, qhov sib ntxiv ntawm electrons tshwm sim. Qhov no cov tshuaj tiv thaiv yog cov yam ntxwv ntawm uas tsis yog-hlau thiab acidic residues.

reductant Feature

Xav rau lo lus nug ntawm yog dab tsi iAd, peb yuav tsis quav ntsej xws li ib tug tshaj plaws raws li ib tug "kom txhob muaj neeg sawv cev".

Nws yog hais txog ib tug nruab nrab molecule los yog them ion, uas raws li ib tug tshwm sim ntawm cov tshuaj sis yuav nyiam ion mus rau lwm lub atom los yog electron, yog li kom lawv degree ntawm oxidation.

Kev txiav txim ntawm oxidant

Reasoning tshaj yog dab tsi OVR yog tseem tseem ceeb yuav pav ib lub sij hawm xws li "oxidizer". Nyob rau hauv nws yog npaum li cas los yog ions los yog nruab nrab atoms uas los ntawm tshuaj sis yuav siv sij hawm tsis zoo electrons ntawm lwm yam atoms los yog nruab nrab hais. Nyob rau tib lub sij hawm nws cov thawj oxidation lub xeev yuav txo tau.

hom ISI

Sib cav sib tshaj yog dab tsi iAd, nws yuav tsum tau muab sau tseg txog yam ntawm cov dab, uas yog feem ntau pom tias nyob rau hauv lub inorganic thiab organic synthesis.

Intermolecular kev sib tshuam koom nrog xws dab nyob rau hauv uas lub atoms thiab ib tug txo neeg saib xyuas thiab oxidizing neeg sawv cev muaj nyob rau hauv txawv pib tshuaj, yog reacted. Raws li ib qho piv txwv ntawm no hom ntawm transformation yuav ua nyob rau hauv kev sis raug zoo ntawm manganese oxide (4) thiab ib tug tov ntawm hydrochloric acid nyob rau hauv uas cov tshuaj pa roj yog tsim, manganous chloride thiab dej.

Nyob rau hauv no tshuaj txheej txheem raws li reductant anions tshwm sim tshuaj oxidation li sis raug zoo. Manganese ntawv (nrog oxidation +4) niamntiav oxidation cov tshuaj tiv thaiv muaj peev xwm, txais ob electrons, yog txo.

Intramolecular sis yog ib yam tshuaj transformations xws li, raws li ib tug txo neeg saib xyuas thiab uas atoms thiab oxidant yog chiv atoms yog ib tug pib yeeb tshuaj, thiab tom qab lub conversion lawv yog nyob rau hauv ntau cov tshuaj tiv thaiv cov khoom.
Raws li ib qho piv txwv ntawm no hom ntawm cov tshuaj tiv thaiv yuav tsum sawv cev los ntawm ib tug decomposition ntawm poov tshuaj chlorate. Thaum cua sov rau cov tshuaj yeeb dej caw yuav raug muab hloov dua siab tshiab rau potassium chloride thiab oxygen. Oxidative zog yog cov yam ntxwv ntawm chlorate anion, uas, noj tsib electrons nyob rau hauv cov tshuaj tiv thaiv yuav rov qab hloov mus rau hauv chloride.

Nyob rau hauv cov ntaub ntawv no, cov pa anion yuav muaj txo zog, yog oxidized rau molecular oxygen. Yog li ntawd yog dab tsi iAd nyob rau hauv cov ntaub ntawv no? Qhov no electron hloov txheej txheem ntawm ions, ua rau hauv lub tsim ntawm ob cov tshuaj tiv thaiv cov khoom.

Tsis tas li ntawd rau no hom ntawm tshuaj tshua tshwm sim nrog qhov kev hloov nyob rau hauv oxidation hais hais yog chiv nyob rau hauv ib lub mis yog hais txog txheej txheem ntawm decomposition ntawm ammonium nitrite. Nitrogen sawv nyob rau hauv lub ammonium ntawv muaj cov oxidation xeev 3, thaum lub sij hawm tus txheej txheem xa ib tug rau electrons thiab yog oxidized rau molecular nitrogen. Thiab lub nitrogen uas yog ib tug tswv cuab ntawm nitrite, tau txais rau electrons, nrog ib tug txo neeg sawv cev, thiab thaum lub sij hawm cov tshuaj tiv thaiv nws yog oxidized.

Yuav ua li cas yog iAd nyob rau hauv Science News for KIDS? Lus Txhais tau saum qhia tau hais tias hais tias qhov no transformation txuam nrog kev hloov nyob rau hauv ob peb lub ntsiab ntawm oxidation.

Autoxidation thiab rov qab (disparity) assumes xws dab nyob rau hauv lub chav kawm ntawm uas raws li cov txo neeg saib xyuas thiab cov oxidizing neeg sawv cev ua hauj lwm pab ib tug pib atom uas yuav nce thiab ib txhij txo nws oxidation lub xeev tom qab kawm tiav ntawm cov tshuaj tiv thaiv. Sib cav sib tshaj yog dab tsi iAd yog nyob rau hauv Science News for KIDS, piv txwv xws li transformations yuav pom txawm nyob rau hauv lub chav kawm ntawm high school Science News for KIDS. Poov tshuaj sulfite decomposition raws li qhov cua kub tau nyob rau hauv lub tsim ntawm lub ob hlau salts: sulphide thiab sulphate. Cov leej faj nyob rau hauv oxidation xeev +4 thiab teev yuav txo tau thiab oxidation zog los ntawm raising thiab tej lub oxidation xeev ntsuas.

Yuav kom to taub li cas nws txhais tau hais WRA nyob rau hauv lub Science News for KIDS, peb hu lwm daim ntawv ntawm tej tshuaj transformations. Kontrproportsionirovanie yuav xws dab raws li ib tug tshwm sim ntawm uas tus oxidant thiab reductant atoms yog muaj li ntawm ntau yam starting lub Cheebtsam, tab sis nyob rau sab xis, lawv tsim ib tug tshuaj tiv thaiv cov khoom. Piv txwv li, los ntawm reacting ib leej faj oxide (4) nrog hydrogen sulfide tsim leej faj thiab dej. Ion leej faj nyob rau hauv oxidation xeev +4 yuav coj plaub electrons, thiab cov leej faj ion nrog taw qhia -2 loses ob electrons. Raws li ib tug tshwm sim, ob qho tib si ntawm lawv yog hloov mus rau hauv ib tug yooj yim tshuaj, uas muaj ib tug oxidation lub xeev ntawm xoom.

xaus

Xav rau lo lus nug ntawm yog dab tsi ISI nyob rau hauv Science News for KIDS, peb nco ntsoov hais tias qhov no ntau hloov dua siab tshiab, los ntawm cov uas muaj sia nyob muaj nuj nqi, muab ib tug ntau yam ntawm tej yam ntuj tso dab thiab phenomena. Nyob rau hauv thiaj li yuav npaj qhov sib npaug nyob rau hauv xws yam, nws yog tsim nyog los ua ib qho kev siv hluav taws xob tshuav nyiaj li cas.