Video: GCSE yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A compound yog ib yam khoom tsim los ntawm ob lossis ntau lub ntsiab lus. uas tau reacts chemically nrog ib leeg. Nco ntsoov cov ntsiab lus no raws li koj xav tau hauv kev xeem! A compound yog cov khoom tshiab kiag li uas feem ntau yuav muaj. tag nrho cov khoom sib txawv ntawm cov khoom uas ua rau nws.
Hais txog qhov no, dab tsi yog qhov sib xyaw GCSE?
A sib tov muaj ob lossis ntau yam khoom. uas tsis tau hnov mob chemical nrog ib leeg. A sib tov yog tsim los ntawm me me ntawm txhua yam khoom sib xyaw ua ke. A sib tov tuaj yeem sib cais los ntawm kev siv lub cev, ib qho kev sib xyaw ua tsis tau.
Tsis tas li ntawd, qhov piv txwv sib xyaw yog dab tsi? A compound yog ib yam khoom uas tsim thaum ob los yog ntau tshaj cov ntsiab lus chemically bonded ua ke. Piv txwv 1: Cov dej ntshiab yog a compound ua los ntawm ob yam - hydrogen thiab oxygen. Qhov piv ntawm hydrogen rau oxygen hauv dej yog ib txwm 2: 1. Txhua lub molecule ntawm dej muaj ob lub hydrogen atoms sib koom ua ke rau ib qho oxygen atom.
Ua li no, dab tsi yog qhov sib xyaw BBC Bitesize?
A compound muaj ob los yog ntau lub ntsiab lus chemically koom ua ke. Ib qho sib tov muaj ob lossis ntau yam khoom sib txawv uas tsis muaj tshuaj lom neeg ua ke. Cov khoom sib txawv hauv qhov sib tov tuaj yeem yog cov khoom thiab / lossis tshuaj sib xyaw.
Dab tsi yog lub ntsiab lus thiab dab tsi yog qhov sib xyaw?
Cov ntsiab lus yog cov khoom (xws li hydrogen thiab oxygen) uas tsis tuaj yeem faib ua cov khoom yooj yim. Ib yam khoom zoo li dej, uas yog tsim los ntawm ob lossis ntau dua cov ntsiab lus , npe a compound . Cov tshuaj feem ntau txawv ntawm cov cov ntsiab lus uas tau sib sau ua ke los ua lawv.
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