Video: Cov organic tebchaw tau txais lawv lub npe Li cas lo lus muaj feem xyuam rau nws lub ntsiab lus li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yuav ua li cas yog lo lus hais txog nws lub ntsiab lus ? Organic Compounds tau txais nws lub npe los ntawm tus naj npawb ntawm carbon daim ntawv cog lus. Cov lus yog ntsig txog mus rau lub ntsiab lus vim nws yuav tsum ua nrog daim ntawv cog lus hauv carbon atoms hauv organic tebchaw.
Ib yam li ntawd, puas yog cov txheej txheem uas tsim cov organic molecules loj?
Polymerization yog tus txheej txheem uas yog lub luag hauj lwm rau kev tsim ntawm loj tus lej ntawm cov organic molecules.
Kuj Paub, dab tsi yog 5 lub ntsiab organic tebchaw? Muaj plaub yam tseem ceeb, lossis chav kawm, ntawm cov organic tebchaw pom nyob rau hauv txhua yam muaj sia: carbohydrates , lipids , cov proteins , thiab nucleic acids . Tsis tas li ntawd, muaj lwm cov organic tebchaw uas yuav pom nyob rau hauv los yog tsim los ntawm ib co kab mob.
Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog qhov chaw ntawm cov organic tebchaw?
Cov organic tebchaw los ntawm ntuj qhov chaw muaj xws li n-alkanes, methyl n-alkanoates, n-alkanols, n-alkanoic acids, sterols, triterpenoids, thiab n-alkanones. Lub ntuj organic Cheebtsam yog qis dua nyob rau hauv concentration nyob rau hauv lub nroog piv rau cov cheeb tsam nyob ib ncig ntawm.
Dab tsi yog qhov sib txawv ntawm cov organic thiab inorganic compound?
Lub ntsiab txawv yog hauv muaj cov pa roj carbon atom; organic tebchaw yuav muaj cov pa roj carbon atom (thiab feem ntau yog hydrogen atom, tsim hydrocarbons), thaum yuav luag tag nrho inorganic tebchaw tsis muaj ib qho ntawm ob lub atom. Thaum feem ntau inorganic tebchaw tsis muaj carbon, muaj ob peb ua.
Pom zoo:
Yuav ua li cas cov nroj tsuag tau txais cov khoom uas lawv xav tau rau kev loj hlob?
Cov nroj tsuag tau txais cov ntaub ntawv uas lawv xav tau rau kev loj hlob thiab kev loj hlob feem ntau los ntawm cov txheej txheem hu ua photosynthesis. Photosynthesis xav tau lub teeb lub zog (los ntawm lub hnub), huab cua (carbon dioxide), thiab dej los tsim cov suab thaj (glucose) thiab oxygen
Yuav ua li cas ib tug capita tus nqi ntawm cov pejxeem loj hlob muaj feem xyuam rau cov pejxeem?
Kev loj hlob ntawm pej xeem yog ntsuas nyob rau hauv cov tib neeg nyob rau hauv ib tug pej xeem (N) dhau sij hawm (t). Per capita txhais tau hais tias ib tus neeg, thiab qhov kev loj hlob ntawm ib tus neeg muaj feem cuam tshuam txog tus naj npawb ntawm kev yug thiab kev tuag hauv cov pejxeem. Qhov sib npaug ntawm kev loj hlob hauv logistic xav tias K thiab r tsis hloov lub sijhawm hauv cov pejxeem
Cov ntsiab lus twg feem ntau yuav tau txais cov hluav taws xob hauv cov tshuaj lom neeg?
Cov hlau tsis yog hlau yuav tau txais cov khoom siv hluav taws xob kom tau txais Noble Gas teeb tsa. Cov muaj kuj muaj Electron affinities thiab siab Ionization energies. Cov hlau zoo li plam electrons thiab cov hlau tsis yog hlau yuav tau txais electrons, yog li hauv kev cuam tshuam nrog ob pawg no, muaj kev hloov hluav taws xob los ntawm cov hlau mus rau cov hlau tsis yog hlau
Cov nqe lus twg piav qhia vim li cas lub ntsiab lus carbon tsim muaj ntau lub tebchaw?
Cov pa roj carbon monoxide yog tib lub ntsiab lus uas tuaj yeem tsim muaj ntau lub tebchaw sib txawv vim tias txhua cov pa roj carbon atom tuaj yeem tsim plaub daim ntawv cog lus tshuaj rau lwm cov atoms, thiab vim tias cov pa roj carbon atom tsuas yog txoj cai, me me kom haum rau hauv qhov chaw ntawm cov molecules loj heev
Henri Becquerel nrhiav tau dab tsi uas ua rau nws tau txais 1903 Nobel nqi zog Nws nrhiav tau dab tsi txog lub caij uranium?
Teb: Henri Becquerel tau txais ib nrab ntawm qhov khoom plig rau nws qhov kev tshawb pom ntawm cov hluav taws xob tsis zoo. Teb: Marie Curie tau kawm txog cov hluav taws xob ntawm tag nrho cov tebchaw uas muaj cov xov tooj cua paub, suav nrog uranium thiab thorium, uas nws tom qab pom kuj tseem muaj xov tooj cua