Qhov sib txawv tseem ceeb ntawm ionic thiab molecular compounds yog tias cov ionic compounds muaj electrostatic attraction rog ntawm cations thiab anions whereas cov molecular compounds tsuas muaj covalent tshuaj bonds ntawm lub atoms.
Cov khoom siv tshuaj tuaj yeem koom ua ke los tsim cov tshuaj lom neeg. Cov ntsiab lus khi ua ke ntawm cov khoom siv tshuaj lom neeg uas muaj cov yam ntxwv ionic lossis covalent. Yog hais tias cov tebchaw muaj ionic bonds, peb hu lawv li ionic compounds, thiab yog hais tias lawv muaj covalent bonds, ces lawv yog molecular compounds. Yog li ntawd, qhov sib txawv tseem ceeb ntawm ionic thiab molecular compounds nyob ntawm cov tshuaj sib txuas ntawm cov atoms.
Ionic Compounds yog dab tsi?
Ionic tebchaw yog cov tshuaj sib txuas uas muaj cations thiab anions uas khi rau ib leeg ntawm kev sib txuas ionic. Yog li ntawd, muaj electrostatic attraction zog ntawm cations thiab anions. Txawm li cas los xij, lub compound muaj tag nrho cov nqi nruab nrab vim tias tag nrho cov nqi ntawm cations yog neutralized los ntawm tag nrho cov nqi ntawm anions. Cov ions no tuaj yeem yog monoatomic lossis polyatomic.
Feem ntau, cov ionic compounds uas muaj hydrogen ion (H+) raws li cov cation yog "acids". Hauv qhov sib piv, cov ions yooj yim xws li hydroxide ion (OH–) muaj nyob hauv cov hauv paus. Yog tias tsis muaj hydrogen ions lossis hydroxide ions nyob rau hauv lub ionic compound, ces peb muab nws lub npe hu ua " ntsev ".
Daim duab 01: Ionic Compound ntawm Sodium Chloride, uas yog ntsev
Qee ionic compounds xws li ntsev tsim los ntawm acid-base neutralization cov tshuaj tiv thaiv. Qee lub tebchaw tsim los ntawm evaporation ntawm cov kuab tshuaj, nag lossis daus cov tshuaj tiv thaiv, cov tshuaj tiv thaiv hauv lub xeev, khov, electron hloov cov tshuaj tiv thaiv ntawm cov hlau thiab cov nonmetals, thiab lwm yam. Feem ntau, cov tebchaw no muaj cov ntsiab lus siab melting thiab kub kub. Feem ntau ntawm cov sij hawm lawv nyuaj thiab nkig. Nyob rau hauv lawv cov khoom, yuav luag tag nrho cov ionic compounds yog hluav taws xob insulators, thiab lawv muaj peev xwm ua tau heev conductive thaum yaj nyob rau hauv ib tug hnyav xws li dej vim hais tias tom qab ntawd cov cations thiab anions tuaj yeem txav tau yooj yim.
Dab tsi yog Molecular Compounds?
Molecular compounds yog cov tshuaj sib txuas uas muaj cov atoms sib koom ua ke ntawm covalent chemical bonds. Yog li ntawd, cov tebchaw no tsim thaum atoms qhia lawv cov electrons uas tsis muaj kev sib koom ua ke. Cov atoms koom nrog hauv qhov sib koom electron no muaj qhov zoo sib xws ntawm electronegativity.
Daim duab 02: Daim duab ntawm Triatomic Molecule muaj Covalent Bonds ntawm peb Atoms
Feem ntau, cov tebchaw molecular muaj cov ntsiab lus melting tsawg thiab kub kub vim tias cov atoms tsis txuas rau ib leeg. Ib yam li ntawd, cov tshuaj no yog mos thiab hloov tau yooj yim. Piv nrog rau ionic compounds, cov tshuaj molecular no yog cov nplaim taws heev. Qhov no yog vim hais tias yuav luag tag nrho cov flammable tshuaj yog molecular compounds uas muaj carbon thiab hydrogen atoms. Tsis zoo li ionic compounds, lawv tsis tuaj yeem ua hluav taws xob thaum yaj hauv cov kuab tshuaj vim tias tsis muaj cov ions cais tawm tom qab yaj.
Qhov txawv ntawm Ionic thiab Molecular Compounds yog dab tsi?
Ionic tebchaw yog cov tshuaj sib txuas uas muaj cations thiab anions uas khi rau ib leeg ntawm ionic bonding thaum molecular compounds yog cov tshuaj sib txuas uas muaj cov atoms sib koom ua ke ntawm covalent tshuaj bonds. Yog li, qhov sib txawv ntawm ionic thiab molecular compounds nyob ntawm qhov xwm txheej ntawm cov tshuaj sib txuas. Qhov ntawd yog; Qhov sib txawv tseem ceeb ntawm ionic thiab molecular compounds yog cov ionic compounds muaj electrostatic attraction rog ntawm cations thiab anions whereas cov molecular compounds tsuas muaj covalent tshuaj bonds ntawm lub atoms.
Raws li lwm qhov sib txawv tseem ceeb ntawm ionic thiab molecular compounds, cov ionic compounds yog tawv thiab nkig thaum molecular compounds yog mos thiab hloov tau. Qhov no feem ntau yog vim hais tias cov atoms ntawm ionic tebchaw yog tuav ua ke nruj nreem los ntawm ionic bonds whereas nyob rau hauv molecular tebchaw atoms txuas rau ib leeg kuj xoob. Ntxiv mus, cov ntsiab lus melting thiab boiling ntawm ionic compounds yog siab heev nyob rau hauv kev sib piv rau cov molecular compounds.
Summary – Ionic vs Molecular Compounds
Ionic compounds muaj ionic bonds thaum molecular compounds muaj covalent bonds. Yog li, qhov sib txawv tseem ceeb ntawm ionic thiab molecular compounds yog cov ionic compounds muaj electrostatic attraction rog ntawm cations thiab anions whereas cov molecular compounds tsuas muaj covalent tshuaj bonds ntawm lub atoms.
