Nonpolar Molecule Piv txwv Piv txwv ntawm homonuclear nonpolar molecules yog oxygen (O 2) , nitrogen (N 2), thiab ozone (O3). Lwm cov molecules nonpolar muaj xws li carbon dioxide (CO2) thiab cov organic molecules methane (CH 4), toluene, thiab roj av. Cov pa roj carbon feem ntau yog cov tsis muaj polar.
Yuav ua li cas molecule yog nonpolar a h2se B beh2 C pf3 D chcl3?
teb xaiv B yog qhov yog.
Koj tuaj yeem txheeb xyuas cov molecules uas tsis yog polar?
- Yog hais tias qhov kev npaj yog symmetrical thiab cov xub yog sib npaug ntev, lub molecule yog nonpolar.
- Yog cov xub sib txawv ntev, thiab yog tias lawv tsis sib npaug, lub molecule yog polar.
- Yog tias qhov kev npaj yog asymmetrical, lub molecule yog polar.
piv txwv ntawm polar thiab nonpolar molecules yog dab tsi?
Polar molecules tej zaum yuav koom nrog hauv hydrogen bonding ntawm tus ncej ntawm daim ntawv cog lus. Nonpolar molecules feem ntau muaj zog intermolecular tsis muaj zog xws li van der Waal lub zog. Qee qhov piv txwv ntawm cov polar molecules yog H2O, CHF3, NH3 , thiab lwm yam. Qee qhov piv txwv ntawm cov molecules tsis muaj polar yog CO2, H2, benzene, thiab lwm yam.
Dab tsi yog qhov txawv ntawm polar thiab nonpolar?
Thaum tsis muaj qhov sib txawv ntawm cov electronegativities ntawm molecules, daim ntawv cog lus yuav yog nonpolar covalent bonds. Ntawm qhov tod tes, thaum lub atom ntau electronegative rub lub electron los ntawm lwm lub atom, ces polar ionic bonds yuav tsim.
