Video: Koj nkag siab dab tsi los ntawm qhov polar xwm ntawm dej?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Dej yog ib " polar "Molecules, lub ntsiab lus tias muaj kev faib tsis sib npaug ntawm electron ceev. Dej muaj ib feem tsis zoo nqi () nyob ze ntawm cov pa atom vim cov unshared khub ntawm electrons, thiab ib nrab nqi zoo () nyob ze hydrogen atoms.
Kev sib raug zoo, lub ntsiab lus ntawm polar xwm yog dab tsi?
Hauv chemistry, polarity yog kev sib cais ntawm cov nqi hluav taws xob ua rau cov molecule los yog nws cov chemical pawg uas muaj hluav taws xob dipole lub sij hawm, nrog rau qhov tsis zoo them kawg thiab qhov kawg them zoo. Polar molecules yuav tsum muaj polar bonds vim qhov sib txawv hauv electronegativity ntawm cov atoms sib txuas.
Ib tug kuj yuav nug, qhov polar xwm ntawm dej txhawb lub neej li cas? Cov dej polarity tso cai rau nws dissolve lwm yam polar tshuaj yooj yim heev. Thaum a polar khoom muab tso rau hauv dej , qhov zoo kawg ntawm nws cov molecules yog attracted rau qhov tsis zoo kawg ntawm lub dej molecules, thiab vice versa. ' Lub zog dissolving ntawm dej yog ib qho tseem ceeb heev rau lub neej nyob ntiaj teb.
Ib yam li ntawd, tej zaum koj yuav nug, yog vim li cas Dej yog ib tug polar molecule?
A dej molecule , vim nws cov duab, yog a polar molecule . Ntawd yog, nws muaj ib sab uas tau them nyiaj zoo thiab ib sab uas raug them tsis zoo. Cov molecule yog tsim los ntawm ob lub atom hydrogen thiab ib qho oxygen atom. Cov kev sib txuas ntawm cov atoms hu ua covalent bonds, vim hais tias cov atoms sib koom electrons.
Yuav hais li cas txog polarity ntawm dej?
Cov dej yog ib tug polar molecule. Cov polarity ntawm dej yog vim lub electronegativity ntawm cov pa oxygen. Vim yog qhov siab electronegativity ntawm cov pa, daim ntawv cog lus ntawm hydrogen thiab oxygen yog rub los ntawm nws tus kheej, uas ua rau pom qhov tsis zoo me ntsis ntawm cov pa oxygen thiab me ntsis zoo ntawm hydrogen.
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