Video: Koj tuaj yeem sim ua li cas thiaj txiav txim siab seb qhov sib xyaw puas yog ionic lossis covalent?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Muaj ob peb txoj kev sib txawv txiav txim yog tias ib daim ntawv cog lus yog ionic los yog covalent . Los ntawm txhais, ib ionic bond yog nruab nrab ntawm ib tug hlau thiab nonmetal, thiab a covalent bond yog nruab nrab ntawm 2 nonmetals. Yog li koj feem ntau tsuas yog saib ntawm lub rooj zaum thiab txiav txim seb koj compound yog ua los ntawm cov hlau / nonmetal los yog tsuas yog 2 nonmetals.
Kuj nug, yog dej polar lossis nonpolar?
Dej (H2O) yog polar vim qhov khoov zoo ntawm cov molecule. Cov duab txhais tau hais tias feem ntau ntawm cov nqi tsis zoo los ntawm cov pa oxygen ntawm sab ntawm lub molecule thiab cov nqi zoo ntawm hydrogen atoms nyob rau sab nraud ntawm lub molecule. Qhov no yog ib qho piv txwv ntawm polar covalent chemical bonding.
Tsis tas li ntawd, dej puas yog cov kab mob sib kis? A dej molecule, abbreviated li H2O, yog ib qho piv txwv ntawm a polar covalent bond . Cov electrons tsis sib npaug, nrog rau cov pa atom siv sij hawm ntau nrog cov hluav taws xob ntau dua li cov hydrogen atoms. Txij li thaum electrons siv sij hawm ntau nrog cov pa atom, nws nqa ib feem tsis zoo nqi.
Hais txog qhov no, yog HCL polar lossis nonpolar?
HCL yog a polar molecule li chlorine muaj ntau dua electronegativity tshaj hydrogen. Yog li, nws nyiam cov khoom siv hluav taws xob kom siv sij hawm ntau thaum nws kawg, muab nws tus nqi tsis zoo thiab hydrogen rau qhov zoo. Koj puas paub tias Br2 yog li cas polar los yog nonpolar ?
Yuav ua li cas koj qhia yog hais tias ib tug compound yog ionic los yog molecular?
- Mixed Ionic / Molecular Compound Naming.
- Thaum naming cov tebchaw, thawj qhov uas koj yuav tsum tau ua yog txiav txim siab seb lub compound yog ionic los yog molecular.
- Saib cov ntsiab lus hauv qhov sib xyaw.
- * Ionic tebchaw yuav muaj ob qho tib si hlau thiab tsis yog hlau, los yog tsawg kawg yog ib tug polyatomic ion.
- * Molecular compounds yuav tsuas muaj cov hlau tsis muaj hlau.
Pom zoo:
Lub hauv paus ntsiab lus twg ntawm kev txheeb ze koj tau siv los txiav txim siab seb pob zeb txheej H yog laus dua lossis hluas dua txheej?
Lub hauv paus ntsiab lus ntawm superposition yog yooj yim, intuitive, thiab yog lub hauv paus rau cov txheeb ze hnub nyoog sib tam. Nws hais tias cov pob zeb nyob hauv qab lwm cov pob zeb yog cov laus dua li cov pob zeb saum toj no
Dab tsi yog tsib yam pov thawj uas koj tuaj yeem siv los txiav txim seb puas muaj tshuaj lom neeg tshwm sim?
Qee cov cim qhia txog kev hloov tshuaj lom neeg yog kev hloov xim thiab tsim cov npuas. Lub tsib yam kev hloov ntawm tshuaj lom neeg: xim chage, tsim ntawm precipitate, tsim cov roj, tsw hloov, kub hloov
Yuav ua li cas txiav txim siab seb qhov kev sib txawv yog qhov zoo?
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Lub dav hlau sib koom ua ke tuaj yeem pab koj txiav txim siab li cas cov tog neeg sib koom ua ke?
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Yuav ua li cas koj txiav txim siab uas yog tus nqi txiav txim kauj ruam?
Tus nqi txiav txim siab kauj ruam yog kauj ruam qeeb tshaj plaws ntawm cov tshuaj tiv thaiv tshuaj uas txiav txim siab qhov nrawm (tus nqi) uas tag nrho cov tshuaj tiv thaiv ua tiav. Teb Tus nqi txiav txim kauj ruam yog kauj ruam thib ob vim nws yog kauj ruam qeeb. 2NO + 2H2 → N2 + 2H2O. Cov intermediates hauv cov tshuaj tiv thaiv no yog N2O2 thiab N2O