2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Nyob rau hauv cov lus piav qhia, cov cyclohexylamine yog qhov yooj yim dua li lwm yam peb lub tebchaw xws li aniline, benzylamine thiab 1-piperideine raws li khub electron yooj yim muaj nyob rau ntawm nitrogen ntawm cyclohexylamine piv. mus rau lwm cov tebchaw. Yog li, cyclohexylamine yog qhov yooj yim dua piv txwv li kev xaiv (A) yog lawm.
Qhov twg ntawm cov tshuaj hauv qab no yog qhov yooj yim tshaj plaws aniline?
Tab sis benzylamine yog qhov yooj yim dua li aniline vim tias pawg benzyl yog ib pab pawg neeg pub dawb vim yog + kuv cov nyhuv. Yog li, electron ceev nce ntawm N ntawm NH2.
Qhov twg yog qhov tseem ceeb tshaj plaws ntawm cov tshuaj hauv qab no?
Hauv benzylamine, ib leeg ntawm cov hluav taws xob tsis nyob hauv kev sib txuas lossis txuas nrog lub nplhaib benzene thiab yog li pub dawb rau cov khoom siv hluav taws xob (piv txwv li pab pawg tsis muaj hluav taws xob) lossis ua ke nrog lwm cov khoom. Yog li, compound benzylamine yog qhov yooj yim tshaj plaws ntawm cov kev xaiv.
Qhov twg hauv qab no yog cov amines yooj yim tshaj plaws?
Qhov yooj yim tshaj plaws amine ntawm cov hauv qab no yog
- xaiv. (a) p-toluidine. (b) o-nitroaniline. …
- Cov lus teb: p-toluidine.
- Kev piav qhia: Lub hauv paus ntawm amines nce nrog lub xub ntiag ntawm cov hluav taws xob tso tawm cov pab pawg thiab txo qis nrog lub xub ntiag ntawm electron tshem tawm pawg.
Puas yog amides acidic lossis yooj yim?
Piv rau amines, amides yog qaug zog heevthiab tsis muaj meejtxhais tau tias acid-base zog hauv dej. Ntawm qhov tod tes, amides yog cov hauv paus muaj zog dua li esters, aldehydes, thiab ketones.
Pom zoo:
Cov khoom xyaw twg hauv qab no ua cov tshuaj tsw qab hauv cov tshuaj txhuam hniav?
Sodium lauryl sulfate (SLS) yog surfactant feem ntau siv. YPuas yog tshuaj txhuam hniav puas yog surfactant? Surfactants. Ntau, txawm tias tsis yog tag nrho, tshuaj txhuam hniav muaj sodium lauryl sulfate (SLS) lossis lwm yam surfactants (detergents).
Ntawm koj qhov yooj yim tshaj plaws?
From Longman Dictionary of Contemporary English Longman Dictionary of Contemporary English From Longman Dictionary of Contemporary Englishrange1 /reɪndʒ/ ●●● S1 W1 AWL noun 1 ntau yam/neeg [suav tau feem ntau singular] ib tug xov tooj ntawm cov neeg los yog tej yam uas yog tag nrho cov sib txawv, tab sis yog tag nrho cov tib yam general typerange ntawm ib tug ntau yam ntawm cov kev pab cuam Cov tshuaj no zoo tiv thaiv ntau yam kab mob.
Qhov twg hauv qab no yog qhov zoo tshaj plaws piav qhia txog lockean lub tswv yim?
Qhov twg ntawm qhov zoo tshaj plaws hauv qab no piav txog John Locke lub tswv yim ntawm tsoomfwv? … Nws yog txoj cai ntawm cov pej xeem los hloov ib tsoom fwv uas tsis tiv thaiv "natural rights" thiab txhawb nqa qhov zoo. Koj nyuam qhuav kawm 6 nqe lus xwb!
Puas yog cov hnub qub uas ze tshaj plaws kuj yog cov hnub qub ci tshaj plaws?
Lub hnub qub nyob ze tshaj plaws rau lub ntiaj teb yog nyob rau hauv Alpha Centauri triple-star system, kwv yees li 4.37 lub xyoo teeb. … Sirius A yog lub hnub qub ci ntsa iab tshaj plaws hauv lub ntiaj teb hmo ntuj, vim nws qhov ci ntsa iab thiab nws nyob ze rau peb.
Ntawm koj qhov yooj yim lossis rau koj qhov yooj yim?
Yog hais txog qhov yooj yim mus ua ntej, ces txhua lub sijhawm tuaj yeem siv rau qhov tseem ceeb: Koj tuaj yeem hu rau kuv ntawm koj qhov yooj yim - txhua lub sijhawm, nruab hnub lossis hmo ntuj. Raws li rau tej zaum vs. tuaj yeem, tej zaum yuav yog lo lus raug siv ntau dua (tsawg kawg hauv kev nkag siab zoo dua), tab sis tuaj yeem ua suab zoo dua hauv cov ntsiab lus tsis raug.
