Video: Lub xeev oxidation ntawm magnesium hauv MgO yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nyob rau hauv lub tsim ntawm magnesium oxide los ntawm magnesium thiab oxygen, magnesium atoms tau poob ob lub electrons, los yog cov oxidation naj npawb tau nce los ntawm xoom mus rau +2.
Kuj tseem paub yog, tus lej oxidation nqi ntawm magnesium hauv MgO yog dab tsi?
Chemistry ntawm magnesium oxide , piv txwv li, yooj yim to taub yog tias peb xav tias MgO muaj Mg 2+ thiab O2- ions. Tab sis tsis muaj cov tebchaw yog 100% ionic. Muaj cov pov thawj sim, piv txwv li, tias qhov tseeb nqi ntawm magnesium thiab oxygen atoms hauv MgO yog +1.5 thiab -1.5.
Qhov thib ob, pes tsawg lub xeev oxidation magnesium muaj? Cov ntsiab lus tseem ceeb. Nyob rau hauv cov tebchaw, magnesium zoo ib txwm pom ib + 2 lub xeev oxidation vim qhov poob lossis sib koom ntawm nws ob 3s electrons. Txawm li cas los xij, muaj qee qhov kev sib koom ua ke me me uas paub nrog magnesium-magnesium bonds, LMg?MgL, nyob rau hauv uas cov chaw hauv magnesium muaj lub xeev +1 oxidation.
Qhov thib ob, lub xeev oxidation ntawm MG hauv MgO yog dab tsi koj paub li cas?
Cov oxidation xeev ntawm magnesium nyob rau hauv lub compound yog +2 (as magnesium yog ib tug tswv cuab ntawm pawg thib ob ntawm lub sij hawm). Thaum peb ntxiv qhov tseem ceeb, peb tau xoom: +2 + (-2) = 0. Qhov no txhais tau tias cov oxidation xeev tau raug xam kom raug: rau magnesium tus nqi yog +2, rau oxygen -2 thiab hydrogen +1.
Cov mis MgO txhais li cas?
Magnesium oxide (MgO), los yog magnesia, yog ib tug dawb hygroscopic khoom ntxhia uas tshwm sim ib txwm li periclase thiab yog ib qhov chaw ntawm magnesium (saib oxide). Nws muaj ib qho empirical qauv ntawm MgO thiab muaj ib lub lattice ntawm Mg2+ ions thiab O2− ions tuav ua ke los ntawm ionic bonding.
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