Video: Muaj pes tsawg lo lus yog ib daim ntawv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Koj kev tshawb fawb Cov ntawv yuav tsum muaj tag nrho ntawm 2500 txog 3000 lus ” Tsis muaj singulardefinition rau tus lub sij hawm ' ntawv tshawb fawb ', nws feem ntau lees txais los ntawm cov kws tshawb fawb tias a ntawv tshawb fawb yog ageneric lub sij hawm.
Hais txog qhov no, ntev npaum li cas daim ntawv sau npe?
A ntawv ntawm li 10 nplooj ntawv ob-spaced (5 ib leeg-spaced) yuav tsim nyog, tab sis yog li yuav ntawv uas yog 15 nplooj ntawv, yog li ntev raws li nplooj ntawv puv nqaij, tsis kub cua. Saib ntu ntawm cov style hauv qab no. Koj ntawv yuav tsum muaj ib tug thesis (proposition, ib qho kev sib cav), uas yog cov lus teb rau koj kev tshawb fawb lus nug.
Tom qab ntawd, lo lus nug yog, koj sau dab tsi hauv daim ntawv lo lus? Cov kauj ruam yooj yim ntawm Yuav Sau Ntawv Li Cas
- Xaiv koj lub ncauj lus (scroll down rau cov piv txwv ntawm lub ncauj lus)
- Tshawb nrhiav koj lub ncauj lus kom ntxaws.
- Npaj koj lub ntsiab lus daim ntawv qhia (scroll down for a sampleoutline)
- Sau koj qhov kev pom zoo qauv.
- Sau koj daim ntawv.
- Npaj koj nplooj ntawv npog.
- Kho kom raug thiab pov thawj nyeem daim ntawv kawg.
Hais txog qhov no, pes tsawg lo lus yog ib daim ntawv scientific?
3 Teb. Qhov chaw no hais tias lawv "feem ntau yog 3,000 txog 10,000 lus nyob rau hauv ntev" nplooj ntawv no yuav muab koj cov lus qhia txog qhov ntev ntawm qhov tshwj xeeb ntawm cov ntawv , zoo.
Muaj pes tsawg kab lus yuav tsum muaj ib daim ntawv?
Hauv nws daim ntawv yooj yim tshaj plaws, ib qho kev sau ntawv tuaj yeem muaj peb yam kab lus nrog ib kab lus raug mob siab rau ntu ntu. Proponents ntawm tsib kab lus essay hais tias lub cev ntawv nyeem yuav tsum muaj peb kab lus , mas hauv kev muaj tiag, nws yog qhov zoo los sau ntau dua kab lus hauv ntu no.
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
Puas yog daim ntawv cog lus hydrogen zoo ib yam li daim ntawv cog lus?
Hydrogen daim ntawv cog lus yog lub npe muab rau electrostatic kev sib cuam tshuam ntawm tus nqi zoo ntawm hydrogen atom thiab tus nqi tsis zoo ntawm oxygen atom ntawm ib qho chaw nyob sib ze. Covalent daim ntawv cog lus yog qhov sib cuam tshuam electrostatic ntawm ob lub atom hauv tib lub molecule
Muaj pes tsawg daim ntawv cog lus tuaj yeem tsim carbon atom thiab vim li cas?
plaub Tsis tas li ntawd, vim li cas nws tseem ceeb uas cov pa roj carbon tsim 4 daim ntawv cog lus? Cov pa roj carbon yog tib lub ntsiab uas ua tau daim ntawv thiaj li sib txawv tebchaw vim txhua carbon atom tau daim ntawv plaub tshuaj daim ntawv cog lus rau lwm cov atoms, thiab vim cov carbon atom tsuas yog txoj cai, me me kom haum rau qhov yooj yim raws li qhov chaw ntawm cov molecules loj heev.
Muaj pes tsawg tus electrons raug muab faib rau hauv ob daim ntawv cog lus?
Hauv daim ntawv cog lus covalent ib khub ntawm electrons tau sib koom ntawm ob lub atoms 'txuas' los ntawm covalent daim ntawv cog lus. Yog li ib daim ntawv cog lus doublecovalent muaj ob khub ntawm electrons raug muab sib koom, yog li tag nrho plaub electrons