Video: Vim li cas kev lag luam tshuaj suav hais tias yog kev lag luam yooj yim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
tus kev lag luam tshuaj siv raw cov ntaub ntawv los tsim cov khoom qhia cov kua qaub, hauv paus, alkalis thiab ntsev. Cov khoom siv feem ntau yog siv los ua lwm yam Kev lag luam Cov khoom xws li iav, chiv, roj hmab, tawv, ntawv thiab textiles. Yog li, peb tuaj yeem hais tias lub kev lag luam tshuaj yog a yooj yim kev lag luam.
Ua li no, chemistry siv hauv kev lag luam li cas?
Kev lag luam kws tshuaj ua hauj lwm los tsim thiab tsim cov khoom thiab cov txheej txheem uas yuav ua rau kom lawv lub tuam txhab muag thiab cov nyiaj tau los. Cov khoom tsim los ntawm cov kev lag luam tshuaj poob rau hauv peb pawg: yooj yim tshuaj , tshwj xeeb tshuaj , thiab cov neeg siv khoom tshuaj.
Tsis tas li ntawd, dab tsi yog txhais los ntawm kev lag luam chemical? Cov kev lag luam tshuaj muaj cov cov tuam txhab uas tsim tawm industrial chemicals . Central rau lub ntiaj teb niaj hnub kev lag luam, nws hloov cov khoom siv raw (roj, nkev, roj, huab cua, dej, hlau, thiab minerals) rau ntau tshaj 70,000 cov khoom sib txawv.
Tsuas yog li ntawd, dab tsi yog # 1 industrial chemical?
Tsis muaj teeb meem dab tsi xyoo, sulfuric acid taub hau cov npe raws li tus lej- ib ua tshuaj thoob ntiaj teb. Kev siv loj ntawm sulfuric acid yog nyob rau hauv kev tsim cov chiv - ammonium sulfate thiab superphosphate.
Cov kua qaub twg raug suav tias yog tshuaj lom neeg hauv kev lag luam tshuaj?
Basic inorganics Lawv yog tsim nyob rau hauv ntau heev, ib co nyob rau hauv lab tonnes ib xyoo, thiab muaj xws li chlorine, sodium hydroxide , sulfuric thiab nitric acids thiab tshuaj rau chiv.
Pom zoo:
Vim li cas peb thiaj li hais txog kev txwv tsis pub muaj kev hais tawm thiab thaum twg peb yuav hais cov kev txwv?
Peb hais txog kev txwv vim nws yuav ua rau qhov sib npaug tsis tau txhais hauv qee qhov txiaj ntsig ntawm x. Qhov kev txwv ntau tshaj plaws rau cov lus qhia muaj nuj nqis yog N / 0. Qhov no txhais tau tias txhua tus lej muab faib los ntawm xoom tsis tau txhais. Piv txwv li, rau txoj haujlwm f(x) = 6/x², thaum koj hloov x = 0, nws yuav ua rau 6/0 uas tsis tau txhais
Lub Tuam Tsev txhais li cas thaum nws hais tias kuv ntseeg tias qhov zoo rau nyuj yog qhov zoo rau kev lag luam?
Lub tuam tsev txhais tau hais tias yog cov nyuj muaj kev hwm thiab kho tau zoo, lawv yuav yooj yim dua los tuav uas yuav ua rau cov txheej txheem zoo dua rau txhua tus neeg koom tes
Yog vim li cas sodium poov tshuaj twj tso kua mis suav hais tias yog ib qho kev thauj mus los uas cov kev taw qhia yog cov sodium thiab poov tshuaj tau pumped?
Sodium-Potassium Pump. Kev thauj mus los yog lub zog xav tau cov txheej txheem ntawm kev siv cov molecules thiab ions hla daim nyias nyias 'nce toj' - tiv thaiv kev sib tw gradient. Txhawm rau txav cov molecules tawm tsam lawv cov concentration gradient, yuav tsum muaj cov khoom siv protein
Yuav ua li cas koj txiav txim siab yog hais tias ib yam khoom yog acidic los yog yooj yim?
Txhawm rau txiav txim siab seb cov khoom puas yog acid orabase, suav cov hydrogens ntawm txhua yam khoom ua ntej thiab tom qab cov tshuaj tiv thaiv. Yog hais tias tus naj npawb ntawm hydrogenshas txo cov tshuaj yog cov kua qaub (donates hydrogen ions). Yog tias tus naj npawb ntawm hydrogens tau nce ntxiv tias cov khoom yog lub hauv paus ( lees txais hydrogenions )
Vim li cas thiaj muaj kev lag luam thiab kev ua lag luam?
Ua thiab lagging strands coli, DNA polymerase uas tswj feem ntau ntawm cov synthesis yog DNA polymerase III. Cov strand no yog ua tsis tu ncua, vim hais tias DNA polymerase yog txav mus rau tib qho kev taw qhia raws li cov diav rawg replication. Qhov no tsis tu ncua synthesized strand yog hu ua tus thawj strand