Cov txheej txheem:
Video: Cov ntawv cog lus dab tsi muaj nyob hauv ib qho piv txwv ntawm h2o S?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv H2O molec, ob dej Cov molecules yog sib txuas los ntawm Hydrogen daim ntawv cog lus tab sis cov daim ntawv cog lus ntawm ob H - O daim ntawv cog lus hauv ib dej molecule yog covalent.
Hauv qhov no, hom ntawv cog lus twg pom nyob hauv dej?
Dej muaj polar covalent bonds nruab nrab ntawm nws cov atoms, thiab feem ntau tsim hydrogen bonds nrog rau lwm cov polar molecules, nrog rau lwm cov dej molecules.
yog h2o yog covalent lossis ionic daim ntawv cog lus? Piv txwv li, dej ( H2O ) yog a compound muaj ob lub hydrogen atoms sib txuas rau ib qho oxygen atom. Cov atoms hauv ib compound tuaj yeem tuav ua ke los ntawm ntau yam kev sib cuam tshuam, xws li los ntawm covalent bonds rau electrostatic zog hauv ionic daim ntawv cog lus . Piv txwv li H2O yog tuav ua ke los ntawm polar covalent bonds.
Ua li no, vim li cas h2o yog daim ntawv cog lus?
Hauv kev xaus, dej muaj ib tug covalent bond vim hais tias ntawm cov pa oxygen thiab hydrogen - lawv sib koom electrons kom muaj kev ruaj ntseg, thiab lawv cov electronegativities nyob ze txaus rau lawv. daim ntawv cog lus xav txog covalent.
Dab tsi yog 4 hom kev sib cog lus hauv chemistry?
4 Hom Tshuaj Bonds
- 1 Ionic daim ntawv cog lus. Ionic bonding cuam tshuam nrog kev hloov ntawm ib qho hluav taws xob, yog li ib lub atom tau txais ib qho hluav taws xob thaum ib lub atom poob ib qho hluav taws xob.
- 2 Covalent bond. Kev sib cog lus ntau tshaj plaws hauv cov organic molecules, covalent daim ntawv cog lus koom nrog kev sib koom ntawm electrons ntawm ob lub atoms.
- 3 Polar daim ntawv cog lus.
Pom zoo:
Yuav ua li cas yog daim ntawv cog lus sib txawv ntawm daim ntawv cog lus ionic?
Qhov sib txawv ntawm cov ionic thiab covalent daim ntawv cog lus yog tias covalent daim ntawv cog lus yog tsim thaum ob lub atoms sib koom electrons. Ionic bonds yog lub zog uas tuav ua ke electrostatic zog ntawm kev nyiam ntawm cov ions oppositely them. Ionic bonds muaj qhov sib txawv electronegativity ntau dua lossis sib npaug li 2
Dab tsi yog qhov txawv ntawm daim ntawv cog lus lub zog thiab daim ntawv cog lus dissociation zog?
Qhov sib txawv tseem ceeb ntawm kev sib txuas ntawm lub zog thiab lub zog bonddissociation yog tias lub zog sib txuas yog qhov nruab nrab ntawm lub zog xav tau los rhuav tshem tag nrho cov kev sib txuas ntawm tib ob hom atoms nyob rau hauv ib qho chaw sib txuas whereas daim ntawv cog lus dissociation zog yog tus nqi ntawm cov hluav taws xob xav tau los rhuav tshem ib qho kev sib koom ua ke inhomolysis
Leej twg yog tus qauv ntawm ib qho tsis muaj polar molecule uas muaj cov ntawv cog lus nonpolar?
(1), (3) H2O thiab NH3 yog cov molecules uas muaj polar covalent bonds, tab sis lawv cov khoom siv hluav taws xob tsis sib luag. (4) H2 yog ib tug nonpolar molecule uas muaj ib tug symmetrical tis ntawm electrons, tab sis cov nyiaj ntawm cov hydrogen atoms yog nonpolar covalent
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Thaum lub ntim ntawm ib qho piv txwv ntawm cov pa roj yog txo lub siab ntawm cov qauv ntawm cov pa roj?
Kev txo qis Cov pa roj sib xyaw txoj cai hais tias lub siab ntawm cov pa roj yog inversely cuam tshuam nrog lub ntim thiab ncaj qha ntsig txog qhov kub thiab txias. Yog tias qhov kub thiab txias yog nyob tas li, qhov sib npaug raug txo rau Boyle txoj cai. Yog li ntawd, yog tias koj txo qhov siab ntawm cov roj av tas li, nws qhov ntim yuav nce ntxiv