Qhov sib txawv tseem ceeb ntawm oxide thiab dioxide yog tias oxide yog ib qho chaw uas muaj ib lossis ntau dua oxygen atoms ua ke nrog lwm cov tshuaj, whereas dioxide yog ib qho oxide uas muaj ob lub atoms ntawm oxygen hauv nws cov molecule.
Lub sij hawm oxide yog ib lo lus dav dav uas piav txog qhov muaj oxygen atoms hauv ib qho chaw. Ntawm no, cov pa oxygen atom muaj nyob ua ke nrog lwm cov tshuaj lom neeg; feem ntau yog hlau thiab nonmetals. Raws li tus naj npawb ntawm oxygen atoms nyob rau hauv lub compound, peb muaj peev xwm muab lawv li monoxide, dioxide, trioxide, thiab lwm yam. Yog li ntawd, dioxide yog ib tug oxide uas muaj ob lub pa oxygen atoms ib molecule.
Oxide yog dab tsi?
Oxide yog ib qho chaw uas muaj ib lossis ntau dua oxygen atoms ua ke nrog lwm cov tshuaj. Cov "oxide" ntawm no yog divalent anion (O2–). Feem ntau, hlau oxides muaj cov dianion no uas cov pa atom nyob rau hauv -2 oxidation xeev. Tsuas yog cov roj teeb tsis muaj zog (xws li helium, neon, argon thiab krypton), oxygen tuaj yeem tsim oxides nrog tag nrho lwm cov khoom.
Hauv kev tsim cov oxide, cov hlau thiab cov hlau tsis muaj hlau tuaj yeem qhia lawv cov oxidation qis tshaj plaws thiab siab tshaj plaws. Qee cov oxides yog ionic compounds; alkali hlau, alkali ntiaj teb hlau thiab cov hlau hloov pauv tsim cov ionic oxides. Lwm cov tebchaw muaj covalent xwm; Cov hlau uas muaj oxidation siab tuaj yeem tsim covalent oxides. Ntxiv mus, nonmetals tsim covalent oxide compounds.
Daim duab 01: Vanadium(v) Oxide
Hauv daim duab saum toj no, vanadium hlau atom muaj qhov muaj txiaj ntsig ntawm 5 (tag nrho valency yog 10 rau ob lub vanadium atoms) yog li, tsib oxygen atoms (nrog valency ntawm 2 rau txhua lub atom oxygen) khi rau lawv.
Ntxiv mus, qee cov organic tebchaw kuj hnov mob nrog oxygen (los yog oxidizing agents) los tsim oxides, xws li. amine oxides, phosphine oxides, sulfoxides, thiab lwm yam. Tsis tas li ntawd, tus naj npawb ntawm oxygen atoms nyob rau hauv lub compound txiav txim seb nws yog ib tug monoxide, dioxide los yog ib tug trioxide.
Raws li lawv cov khoom, nws tseem tuaj yeem faib lawv li acidic, yooj yim, nruab nrab thiab amphoteric oxides. Acid oxide tuaj yeem ua rau lub hauv paus thiab tsim cov ntsev. Piv txwv li: sulfur trioxide (SO3). Basic oxides teb nrog cov kua qaub thiab tsim cov ntsev. Piv txwv li: sodium oxide (Na2O). Neutral qhia tsis yog acidic lossis cov khoom siv yooj yim; Yog li lawv tsis tsim cov ntsev thaum ua haujlwm nrog cov kua qaub lossis cov hauv paus. Piv txwv li: carbon monoxide (CO). Amphoteric oxides muaj ob qho tib si acidic thiab yooj yim zog; Yog li ntawd, lawv hnov mob nrog ob qho tib si acids thiab bases los tsim cov ntsev. Piv txwv li: zinc oxide (ZnO).
Dioxide yog dab tsi?
Dioxide yog ib qho oxide uas muaj ob lub atoms ntawm oxygen hauv nws cov molecule. Ib lub molecule yuav tsum muaj cov tshuaj lom neeg nrog valency ntawm 4 txhawm rau tsim cov dioxide. Nws yog vim hais tias ib qho atom oxygen qhia qhov muaj txiaj ntsig ntawm 2. Piv txwv li, hauv cov pa roj carbon dioxide, qhov valency ntawm carbon yog 4.
Daim duab 02: Pob thiab Cov Qauv ntawm Sulfur Dioxide
Qee piv txwv ntawm Dioxides
YCarbon dioxide (CO
Qhov txawv ntawm Oxide thiab Dioxide yog dab tsi?
Dioxide yog hom oxide. Qhov sib txawv tseem ceeb ntawm oxide thiab dioxide yog tias oxide yog ib qho kev sib xyaw uas muaj ib lossis ntau dua oxygen atoms ua ke nrog lwm cov tshuaj, hos dioxide yog ib qho oxide uas muaj ob lub atoms ntawm oxygen hauv nws cov molecule. Thaum xav txog qhov valency ntawm oxides, qhov valency ntawm oxygen yog 2, thiab valency ntawm lwm yam yuav txawv; Txawm li cas los xij, rau dioxides, qhov valency ntawm oxygen yog 2 thiab valency ntawm lwm yam tseem ceeb yog 4. Yog li, peb tuaj yeem xav txog qhov no ib yam li qhov sib txawv ntawm oxide thiab dioxide.
Summary – Oxide vs Dioxide
Oxide yog ib lo lus dav dav uas peb siv los sau npe txhua qhov chaw uas muaj cov pa oxygen atoms ua ke nrog lwm lub ntsiab lus. Ntxiv mus, raws li tus naj npawb ntawm cov pa atoms, peb tuaj yeem hu lawv li monoxide, dioxide, trioxide, thiab lwm yam. Qhov sib txawv tseem ceeb ntawm oxide thiab dioxide yog tias oxide yog txhua qhov sib xyaw uas muaj ib lossis ntau dua oxygen atoms ua ke nrog lwm cov khoom siv tshuaj, whereas dioxide. yog ib qho oxide uas muaj ob lub atoms ntawm oxygen hauv nws cov molecule.
