Video: Dab tsi tshwm sim ua alkynes raug?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov tshuaj tiv thaiv tseem ceeb ntawm alkynes yog ntxiv hla lub triple daim ntawv cog lus los tsim alkanes. Cov no ntxiv cov tshuaj tiv thaiv yog analogous rau cov alkenes. Hydrogenation . Alkynes tau txais catalytic hydrogenation nrog tib yam catalysts siv hauv alkene hydrogenation : platinum, palladium, nickel, thiab rhodium.
Tsis tas li ntawd, alkynes puas tau hloov pauv cov tshuaj tiv thaiv?
Hauv kev xaus, alkenes thiab alkynes tuaj yeem raug hloov pauv , tab sis cov no yog kom meej meej qhov tshwm sim ntawm cov tshuaj tiv thaiv uas tau piav qhia meej dua li "ntxiv- tshem tawm" ntu lossis "acid-base" tshuaj tiv thaiv . -bonds, yog li tsis txhob muaj tag nrho cov hydrogen uas lawv muaj peev xwm muaj.
Ib sab saum toj no, alkynes puas tuaj yeem raug combustion? Zoo li alkanes alkenes thiab alkynes raug combustion cov tshuaj tiv thaiv Alkenes thiab. Koj ua tau nug!
Ib yam li ntawd, tib neeg nug, puas yog alkyne raug ozonolysis?
Nws yog ib qho organic redox tshuaj tiv thaiv. Oxidation ntawm alkenes nrog kev pab ntawm ozone ua tau muab cawv, aldehydes, ketones, lossis carboxylic acids. Alkynes raug ozonolysis muab cov kua qaub anhydrides los yog diketones. Yog dej yog tam sim no nyob rau hauv cov tshuaj tiv thaiv, cov kua qaub anhydride nkag mus hydrolysis kom tawm los ob carboxylic acids.
Hauv hom tshuaj tiv thaiv dab tsi yog alkyne hloov mus rau alkane?
Peb hom tshuaj tiv thaiv siv los hloov alkynes rau alkenes thiab alkanes : catalytic txo, hydroboration-protonolysis, thiab dissolving-hlau txo. Txo ntawm ib alkyne tshwm sim hauv 2 theem: thawj qhov sib ntxiv ntawm 1 mole ntawm H2 los ua ib qho alkene thiab tom qab ntawd ntxiv ntawm 2nd mole rau alkene los tsim cov alkane.
Pom zoo:
Qhov twg tshwm sim thawj lub teeb nyob ntawm qhov tshwm sim lossis lub teeb ywj pheej?
Lub Teeb-Dependent thiab Lub Teeb-Independent Reactions. Cov tshuaj tiv thaiv lub teeb, lossis cov tshuaj tiv thaiv lub teeb-dependent, yog thawj zaug. Peb hu lawv ob leeg thiab ob lub npe. Nyob rau hauv lub teeb-dependent tshwm sim ntawm photosynthesis, lub zog ntawm lub teeb propels lub electrons los ntawm ib tug photosystem mus rau lub high-zog lub xeev
Tus qauv yuav pab nrhiav qhov tshwm sim ntawm qhov kev tshwm sim sib xyaw li cas?
Lub ntsiab lus ntawm Qhov Muaj Peev Xwm Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej Txheej yog ib qho uas muaj ntau tshaj li qhov ua tau. Kev txiav txim siab qhov yuav tshwm sim ntawm qhov kev tshwm sim sib xyaw suav nrog kev nrhiav cov lej ntawm qhov tshwm sim ntawm tus kheej cov xwm txheej thiab, yog tias tsim nyog, tshem tawm qhov muaj feem sib tshooj
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom loj tshwm sim ntawm koj cov khaub ncaws?
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom ntau tshwm sim ntawm koj cov khaub ncaws? Koj mus ncaj qha rau da dej kev nyab xeeb thiab sawb ntawm tag nrho koj cov khaub ncaws
Qhov txheej twg yog huab cua tshwm sim feem ntau tshwm sim?
Troposphere. Lub troposphere (los ntawm Greek: tropein - hloov, ncig lossis sib xyaw) yog txheej qis tshaj plaws ntawm lub ntiaj teb huab cua. Feem ntau ntawm huab cua phenomena, systems, convection, turbulence thiab huab tshwm sim nyob rau hauv no txheej, tab sis tej zaum yuav mus rau hauv lub qis feem ntawm thestratosphere
Yuav ua li cas koj pom qhov tshwm sim ntawm qhov tshwm sim tsawg kawg ib zaug?
Txhawm rau xam qhov tshwm sim ntawm qhov tshwm sim tshwm sim tsawg kawg ib zaug, nws yuav yog qhov sib ntxiv ntawm qhov xwm txheej tsis tshwm sim. Qhov no txhais tau hais tias qhov tshwm sim ntawm qhov tshwm sim yeej tsis tshwm sim thiab qhov tshwm sim ntawm qhov tshwm sim tsawg kawg ib zaug yuav sib npaug, lossis 100% txoj hauv kev