Video: Cov khoom puas tuaj yeem muab cais ua cov khoom yooj yim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov ntsiab lus ua tsis tau tawg rau hauv ib yam yooj yim dua . Ib yam li ntawd, ib keeb tsis tuaj yeem hloov pauv tshuaj lom neeg rau hauv ib qho txawv keeb . Tshuaj cov ntsiab lus yog qhov yooj yim ntawm tshuaj.
Ib yam li ntawd, koj tuaj yeem nug, cov khoom puas tuaj yeem muab cais ua cov ntaub ntawv yooj yim dua?
Cov ntsiab lus . Ib yam khoom ntshiab uas muaj ib hom ATOM nkaus xwb. Ib keeb yog ib txwm uniform tag nrho txoj kev los ntawm (homogeneous). Ib keeb TSIS MUAJ muab cais ua cov ntaub ntawv yooj yim (tshwj tsis yog thaum muaj kev tawm tsam nuclear).
Tsis tas li, koj tuaj yeem cais ib lub ntsiab lus li cas? Qhov thib ob los yog ntau tshaj cov khoom cov ntsiab lus ntawm ib tug compound tuaj yeem yog cais los ntawm cov tshuaj tiv thaiv. Chemical compounds muaj ib tug tshwj xeeb thiab txhais cov qauv, uas muaj ib tug taag ratio ntawm atoms tuav ua ke nyob rau hauv ib tug txhais spatial kev npaj los ntawm cov tshuaj bonds.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yuav muab cais ua tej yam yooj yim?
Qhov sib txawv ntawm cov ntsiab lus thiab cov tebchaw yog cov tebchaw ua tau tawg lawm rau hauv cov khoom yooj yim los ntawm tshuaj tiv thaiv, los ntawm sib cais cov khoom uas ua rau lub compound. Cov ntsiab lus uas ua ib qho kev sib txuas yuav ib txwm muaj nyob rau hauv tib qhov piv. Cov mis rau dej yog H2O.
Dab tsi tuaj yeem ua rau cov tshuaj lom neeg ua kom yooj yim dua?
Compounds thiab Mixtures
| A | B |
|---|---|
| keeb | cov khoom ntshiab uas tsis tuaj yeem tawg mus rau hauv cov khoom yooj yim los ntawm kev siv tshuaj lom neeg lossis lub cev. Txhua lub ntsiab lus muaj lub cev thiab tshuaj lom neeg tshwj xeeb. |
| compound | ib yam khoom ntshiab uas ua los ntawm cov atoms ntawm 2 los yog ntau dua cov ntsiab lus sib txawv koom ua ke los ntawm cov khoom siv tshuaj. |
Pom zoo:
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