Video: Vim li cas cov ntsiab lus thiab cov ntsiab lus yog cov tshuaj ntshiab?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Elements thiab compounds yog ob qho piv txwv ntawm cov khoom ntshiab . A yam khoom uas tuaj yeem tawg mus rau hauv cov khoom siv tshuaj lom neeg yooj yim (vim tias nws muaj ntau dua ib qho keeb ) yog a compound . Piv txwv li, dej yog a compound tsim los ntawm cov ntsiab lus hydrogen thiab oxygen.
Hais txog qhov no, vim li cas cov ntsiab lus thiab cov tebchaw suav tias yog cov tshuaj dawb huv?
Ib. 1) Elements thiab compounds yog tshuaj ntshiab vim element thiab compounds yeej ib txwm ua los ntawm tib yam hais. Dej (a compound ) ib txwm ua los ntawm (ob) Hydrogen atoms thiab (ib) Oxygenatoms.
Ib yam li ntawd, dab tsi yog lub hauv paus hauv cov khoom ntshiab? A cov khoom ntshiab muaj qhov sib xyaw ua ke tas li thiab tsis tuaj yeem muab cais ua yooj yim dua tshuaj los ntawm lub cev. Muaj ob hom cov khoom ntshiab : cov ntsiab lus thiab compounds. Cov ntsiab lus : yog tshuaj ntshiab ua los ntawm tsuas yog l hom atom. Ib qho kev sib tov yog tsim los ntawm ntau tshaj ib qho keeb los yog compound.
Dhau li ntawm qhov no, dab tsi yog cov ntsiab lus ntshiab thiab cov tebchaw?
Cov tshuaj ntshiab yog ib qho cov ntsiab lus los yog tshuaj sib xyaw . Cov ntsiab lus Tsis tuaj yeem muab cais ua lwm hom teeb meem (lub cev lossis tshuaj lom neeg). Ex: Hydrogen gas yog a cov khoom ntshiab Raws li nws yog tsim los ntawm tsuas yog Hydrogen atoms ormolecules. Carbon, kub, thiab nitrogen yog lwm yam cov ntsiab lus ( cov khoom ntshiab ).
Cov tebchaw puas suav tias yog cov tshuaj dawb huv?
A suav nrog a cov khoom ntshiab . Cov tshuaj yog tsim los ntawm kev sib xyaw ua ke ntawm ob lossis ntau tshaj ob atoms hauv qhov sib piv ruaj khov. Yog vim li cas: Yog li ntawd tshuaj sib xyaw raug kho raws li ib tug dawb huv vim tias lawv tuaj yeem tawg mus rau hauv me me tshuaj sib xyaw los yog cov khoom los ntawm kev siv tshuaj.
Pom zoo:
Vim li cas peb thiaj li kho cov coefficients thaum ntsuas cov tshuaj sib npaug thiab tsis yog cov ntawv sau npe?
Thaum koj hloov cov coefficients, koj tsuas yog hloov tus naj npawb ntawm cov molecules ntawm cov khoom tshwj xeeb. Txawm li cas los xij, thaum koj hloov cov ntawv sau npe, koj tab tom hloov cov tshuaj nws tus kheej, uas yuav ua rau koj qhov sib npaug tshuaj tsis raug
Dab tsi ntawm cov ntsiab lus yog qhov tsawg tshaj plaws reactive thiab vim li cas?
Noble gases yog qhov tsawg tshaj plaws reactive ntawm tag nrho cov ntsiab lus. Qhov ntawd yog vim lawv muaj yim valence electrons, uas ua rau lawv lub zog sab nraud. Qhov no yog qhov ruaj khov tshaj plaws ntawm cov khoom siv hluav taws xob, yog li noble gases tsis tshua muaj kev cuam tshuam nrog lwm cov ntsiab lus thiab cov khoom sib txuas
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
Puas yog cov ntsiab lus uas muaj cov tshuaj lom neeg zoo sib xws yuav pom nyob rau tib lub sijhawm lossis hauv tib pab pawg piav qhia koj cov lus teb?
Qhov no yog vim hais tias cov tshuaj muaj zog nyob ntawm tsis muaj valence electrons. Raws li nyob rau hauv ib pawg tag nrho cov ntsiab lus muaj tib yam tsis muaj valence electron uas yog vim li cas lawv muaj cov tshuaj zoo sib xws tab sis nyob rau hauv ib lub sij hawm tsis muaj valence electron sib txawv uas yog vim li cas lawv txawv nyob rau hauv chemical zog
Dab tsi yog tshuaj lom neeg cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv lub cev?
Qhov sib txawv ntawm cov tshuaj tiv thaiv lub cev thiab cov tshuaj tiv thaiv tshuaj yog muaj pes tsawg leeg. Hauv cov tshuaj tiv thaiv tshuaj, muaj kev hloov pauv ntawm cov tshuaj hauv nqe lus nug; nyob rau hauv ib qho kev hloov ntawm lub cev muaj qhov sib txawv ntawm qhov tsos, tsis hnov tsw, los yog cov duab yooj yim ntawm cov qauv ntawm cov teeb meem yam tsis muaj kev hloov pauv hauv cov ntsiab lus