Video: Vim li cas ionic compounds yaj yooj yim hauv dej?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Rau yaj ib ionic compound , cov dej molecules yuav tsum muaj peev xwm stabilize lub ions uas tshwm sim los ntawm kev tawg lub ionic daim ntawv cog lus. Lawv ua qhov no los ntawm hydrating lub ions . Dej yog ib tug polar molecule. Thaum koj tso ib qho ionic khoom hauv dej , cov dej molecules nyiam qhov zoo thiab tsis zoo ions los ntawm crystal.
Ua li no, vim li cas cov ionic compound soluble hauv dej?
Ionic compounds yaj hauv dej yog hais tias lub zog muab tawm thaum lub ions cuam tshuam nrog dej molecules them nyiaj rau lub zog xav tau los rhuav tshem ionic bonds nyob rau hauv cov khoom thiab lub zog yuav tsum tau cais cov dej molecules kom cov ions tuaj yeem muab tso rau hauv kev daws teeb meem.
Tom qab ntawd, lo lus nug yog, vim li cas ionic bonds thiaj li qaug zog thaum lawv nyob hauv dej? Ionic daim ntawv cog lus feem ntau muaj zog dua covalent daim ntawv cog lus vim muaj ib tug attraction ntawm oppositely them ions . Tab sis, thaum molecules nrog ionic daim ntawv cog lus yog yaj nyob rau hauv dej tus ionic daim ntawv cog lus ua tsis muaj zog ntau piv rau covalent daim ntawv cog lus tom qab molecules nrog covalent daim ntawv cog lus tau yaj hauv dej.
Ntawm no, puas ionic compounds yaj hauv dej yooj yim?
Dej cov molecules tuaj yeem cuam tshuam nrog ions , tsim ib lub plhaub nyob ib ncig ntawm lawv uas kuj screens ions los ntawm ib leeg. Ib ionic compound yuav yaj yooj yim yog tias kev sib cuam tshuam lub zog ntawm cov ions thiab dej yog nquag (dab tsi physicists hu ua lub zog dawb) zoo siab piv rau cov khoom ntsev.
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Ionic kev sib raug zoo Vim tias muaj zog electrostatic zog ntawm lawv, nws yuav siv sij hawm ntau lub zog los cais qhov zoo thiab qhov tsis zoo ions nyob rau hauv ib tug siv lead ua lattice. Qhov no txhais tau tias ionic compounds muaj cov ntsiab lus melting siab thiab cov ntsiab lus boiling. Thaum ib tug crystal ionic compound dissolves hauv dej , cov ions cais.
Pom zoo:
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