Video: Puas yog dej molecules nyiam rau lwm cov polar molecules?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Raws li qhov tshwm sim ntawm dej polarity , cwb dej molecule nyiam lwm cov dej molecules vim hais tias ntawm qhov opposite nqi ntawm lawv, tsim hydrogen bonds. Dej kuj attracts, los yog attracted rau, lwm yam polar molecules thiab ions, suav nrog ntau yam biomolecules, xws li qab zib, nucleic acids, thiab qee cov amino acids.
Tsis tas li ntawd, cov polar molecules puas nyiam ib leeg?
Peb paub tias polar molecules yog nyiam rau ib leeg los ntawm dipole-dipole attractions ntawm ib feem tsis zoo nqi ntawm ib tug polar molecule thiab tus nqi zoo ib nrab rau lwm polar molecule . Yog li ntawd, polar molecules zoo li HCl tau tuav ua ke los ntawm ob qho tib si dipole-dipole attractions thiab London rog.
Kuj Paub, hom ntawv cog lus twg nyiam cov dej molecules rau lwm tus? Hydrogen Bonds Cov nqi sib tw nyiam ib lwm . Qhov zoo me ntsis nqi ntawm hydrogen atoms hauv a dej molecule nyiam me ntsis tsis zoo nqi ntawm cov pa atoms ntawm lwm yam dej molecules . Lub zog me me ntawm kev nyiam no yog hu ua hydrogen daim ntawv cog lus.
Ib tug kuj yuav nug, yog vim li cas dej molecule polar?
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.
Puas yog ib qho molecule ua tau ob qho tib si polar thiab nonpolar?
A molecule tau muaj polar bonds thiab tseem yuav tsis muaj polar . Yog tias polar daim ntawv cog lus sib npaug (lossis symmetrically) faib, daim ntawv cog lus dipoles tshem tawm thiab tsis tsim ib qho molecular dipole.
Pom zoo:
Polar molecules puas tiv thaiv cov tsis muaj polar molecules?
Polar molecules (nrog +/- tsub) yog nyiam rau cov dej molecules thiab yog hydrophilic. Nonpolar molecules yog repelled los ntawm dej thiab tsis yaj hauv dej; yog hydrophobic
Cov dej hauv av puas tuaj yeem ua rau cov dab dej?
Ntau txhiab qhov tshwm sim hauv lub dab dej tuaj yeem pom thoob plaws hauv lub xeev Florida suav nrog ntau yam uas txuas hauv av mus rau cov dej ntws, dej ntws thiab pas dej. -Sinkholes tsim nyob rau hauv karst struts los ntawm lub cev qhuav dej ntawm nto sediments rau hauv av voids
Polar molecules puas sib nyiam?
Peb paub tias polar molecules yog attracted rau ib leeg los ntawm dipole-dipole attraction ntawm ib feem tsis zoo nqi ntawm ib tug polar molecule thiab ib feem zoo nqi ntawm lwm polar molecule
Cov khoom dab tsi ntawm cov dej tso cai rau cov dej los lo rau lub penny?
Kev sib koom tes
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom