Video: Dab tsi yog qhov sib xyaw ntawm cov khoom sib xyaw?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A compound muaj cov atoms ntawm cov khoom sib txawv ntawm cov tshuaj sib xyaw ua ke hauv qhov sib piv ruaj khov. A sib tov yog kev sib xyaw ntawm ob lossis ntau yam tshuaj uas tsis muaj tshuaj lom neeg sib xyaw lossis tshuaj tiv thaiv. Kev sib xyaw. Cov tshuaj muaj cov ntsiab lus sib txawv nyob rau hauv qhov sib piv ruaj khov uas tau hais tseg los ntawm cov khoom siv tshuaj lom neeg.
Tom qab ntawd, dab tsi yog qhov piv txwv ntawm kev sib xyaw ntawm cov khoom sib xyaw?
Cov piv txwv yog dej (H2O), ntsev (sodium chloride, NaCl), methane (CH4). Cov cim qhia tias cov ntsiab lus twg cov ntsiab lus muaj thiab tus lej qhia koj qhov piv ntawm cov atoms ntawm cov ntsiab lus sib xyaw. Kev sib tov yog tsim los ntawm kev sib xyaw ua ke cov ntsiab lus thiab cov khoom sib txuas. Tsis muaj daim ntawv cog lus tshuaj tshiab tsim.
Dhau li ntawm saum toj no, dab tsi yog ib qho khoom xyaw thiab sib tov? Compound : ob lossis ntau qhov sib txawv atoms sib txuas ua ke. Sib tov : ob los yog ntau dua txawv atoms ua ke tab sis tsis koom. Molecule: ob qhov sib txawv (ib yam lossis txawv) sib txuas ua ke. Element : tsuas yog 1 hom atom; Qhov kev txhais no yog siv rau txhua yam uas tau sib koom ua ke thiab tsis yog rau nws tus kheej.
Ib yam li ntawd, nws tau nug, nws puas tuaj yeem muaj qhov sib xyaw ua ke?
Cov khoom ntshiab muaj ib lub ntsiab lus los yog compound . Hlau tsuas yog tsim los ntawm hlau (Fe) atoms; Cov lus ntsev tsuas yog tsim los ntawm sodium chloride (NaCl) molecules. A sib tov , txawm li cas los xij, yog tsim los ntawm qhov sib txawv tshuaj sib xyaw thiab/los yog cov khoom. Thaum ntsev ntxiv rau dej rau ua ntsev, nws ua ib sib tov.
Yuav ua li cas sib tov ntawm cov ntsiab lus sib txawv ntawm ib tug compound?
Cov ntsiab lus yog cov purest daim ntawv ntawm ib tug tshuaj thiab yog tsim los ntawm tsuas yog ib hom ntawm atom. Zoo li lub ntsiab lus, a compound suav hais tias yog ib yam khoom ntshiab (txhais tau tias tsuas muaj ib hom particle hauv cov khoom). A sib tov yog kev sib txuas ntawm ob lossis ntau dua txawv tshuaj tshuaj sib xyaw los yog cov khoom siv hluav taws xob.
Pom zoo:
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