Video: Yuav ua li cas koj nrhiav tau tus nqi ntawm Oxyanion?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
xam los ntawm Oxidation Number
Tus lej oxidation ntawm oxygen yog -2, thiab tus lej oxidation ntawm hydrogen yog +1. Ntxiv ua ke cov lej oxidation ntawm tag nrho cov atoms hauv polyatomic ion. Hauv qhov piv txwv, -2 +1 = -1. Qhov no yog qhov nqi ntawm polyatomic ion.
Ib yam li ntawd, tib neeg nug, ua li cas lub npe oxyanion?
Oxyanions . Qee lub ntsiab lus tuaj yeem tsim ntau dua ib qho oxyanion ua (polyatomic ions uas muaj cov pa oxygen), txhua tus muaj cov lej sib txawv ntawm cov pa oxygen. Lub anion nrog ib qho ntxiv oxygen atom tshaj li (hauv paus) noj anion yog npe los ntawm kev muab per- ntawm qhov pib ntawm lub hauv paus thiab - noj thaum kawg.
Tsis tas li ntawd, koj yuav xam oxidation li cas? 1 Teb
- Tus naj npawb oxidation ntawm cov khoom dawb yog ib txwm 0.
- Tus lej oxidation ntawm monatomic ion sib npaug ntawm tus nqi ntawm ion.
- Tus naj npawb oxidation ntawm H yog +1, tab sis nws yog -1 nyob rau hauv thaum ua ke nrog tsawg electronegative ntsiab.
- Tus lej oxidation ntawm O hauv cov tebchaw feem ntau yog -2, tab sis nws yog -1 hauv peroxides.
Kuj paub, dab tsi ion yog ib qho oxyanion?
Ib qho oxyanion yog ib qho anion muaj oxygen . Cov mis loj ntawm oxyanion yog AxOyz-, qhov twg A yog lub cim cim, O yog ib qho oxygen atom, thiab x, y, thiab z yog integer tus nqi. Feem ntau cov ntsiab lus tuaj yeem tsim oxyanions, ua tau raws li cov xwm txheej ntawm txoj cai octet.
Vim li cas phosphate muaj qhov tsis zoo 3 nqi?
Phosphate yog PO4. Tam sim no, O xav tau 2 electrons rau muaj 8 electrons nyob rau hauv lub plhaub txheej thiab ua kom ruaj khov. Yog li PO4 muaj tag nrho 3 electrons ntau tshaj cov protons nws muaj . Yog li nws yog qhov tsis zoo raug nqi.
Pom zoo:
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