Video: Puas yog daim ntawv cog lus hydrogen zoo ib yam li daim ntawv cog lus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hydrogen daim ntawv cog lus yog lub npe muab rau kev sib cuam tshuam electrostatic ntawm tus nqi zoo ntawm a hydrogen atom thiab tus nqi tsis zoo ntawm cov pa oxygen atom ntawm ib tug nyob sib ze molecule. Cov covalent bond yog electrostatic kev sib cuam tshuam ntawm ob lub atoms hauv lub ib yam molecule.
Ib yam li ntawd, tej zaum koj yuav nug tias, daim ntawv cog lus hydrogen txawv li cas ntawm covalent daim ntawv cog lus?
Covalent daim ntawv cog lus yog ib qho tshuaj lom neeg daim ntawv cog lus tsim los ntawm kev sib koom ntawm electron khub. Covalent bonds muaj zog daim ntawv cog lus nrog ntau dua daim ntawv cog lus zog. Hydrogen daim ntawv cog lus yog ib tug tsis muaj zog electrostatic attraction ntawm lub hydrogen thiab electronegative atom vim lawv txawv hauv electronegativity.
Ib tug kuj yuav nug, yog hydrogen daim ntawv cog lus muaj zog dua covalent daim ntawv cog lus? Hydrogen daim ntawv cog lus yog tsim los ntawm cov tsis muaj zog electrostatic attraction rog ntawm tus ncej zoo ntawm ib tug molecule thiab tus ncej tsis zoo ntawm lwm molecule feem ntau ntawm tib yam khoom. Yog li nws yog ntau muaj zog dua covalent daim ntawv cog lus . Yog li ntawd, lub hydrogen daim ntawv cog lus yog qaug zog heev tshaj covalent bond thiab ionic daim ntawv cog lus.
Qhov thib ob, yog hydrogen yog covalent daim ntawv cog lus?
A covalent bond yog tshuaj daim ntawv cog lus uas yog los ntawm kev sib koom ntawm ib lossis ntau dua electron khub ntawm ob lub atoms. Hydrogen yog ib qho piv txwv ntawm qhov yooj yim heev covalent compound.
Puas yog hydrogen bonds covalent lossis noncovalent?
Noncovalent bonds tsis muaj zog tshaj covalent bonds tab sis lawv tseem ceeb heev rau cov txheej txheem biochemical xws li kev tsim ntawm ob lub helix. Muaj plaub feem ntau hais txog qhov tseem ceeb noncovalent daim ntawv cog lus hom. Lawv suav nrog kev sib cuam tshuam electrostatic, hydrogen bonds , van der Waals kev sib cuam tshuam, thiab kev sib cuam tshuam hydrophobic.
Pom zoo:
Puas yog NaCl muaj daim ntawv cog lus uas tsis muaj polar?
Yog lawm, NaCl yog ib daim ntawv cog lus ionic uas ua rau nws polar. Qhov txawv ntawm electronegativities yog dab tsi ua rau daim ntawv cog lus polar lossis nonpolar. Yog hais tias ob lub atoms nyob rau hauv ib daim ntawv cog lus muaj tib lub electronegativity, (xws li, uas muaj ob ntawm tib lub atoms) daim ntawv cog lus yog nonpolar vim tias ob lub atoms muaj qhov sib npaug ntawm cov electrons
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
Puas yog cua sov tso tawm thaum daim ntawv cog lus tsim?
Hauv txhua hom tshuaj tiv thaiv, daim ntawv cog lus tau tawg thiab rov ua dua los tsim cov khoom tshiab. Txawm li cas los xij, nyob rau hauv exothermic, endothermic, thiab tag nrho cov tshuaj tiv thaiv, nws yuav siv lub zog los rhuav tshem cov tshuaj uas twb muaj lawm thiab lub zog raug tso tawm thaum daim ntawv cog lus tshiab
Puas yog Co muaj daim ntawv cog lus covalent?
Cov pa roj carbon monoxide yog hetero nuclear diatomic molecule. Nws yog ib tug polar covalent molecule raws li qhov sib txawv electronegativity ntawm oxygen thiab carbon yog ntau dua 0.4, li no, tsim ib tug polar covalent daim ntawv cog lus