Video: Dab tsi yog cov tebchaw tab sis tsis yog molecules?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Txhua qhov sib xyaw ntawm atoms yog ib qho molecule. Ib tug compound yog ib tug molecule ua los ntawm atoms los ntawm txawv cov ntsiab lus . Tag nrho cov tebchaw yog molecules, tab sis tsis yog tag nrho cov molecules yog cov tebchaw. Hydrogen gas (H2) yog molecule, tab sis tsis yog ib qho compound vim nws tsuas yog ua los ntawm ib qho xwb keeb.
Hais txog qhov no, yog vim li cas tag nrho cov molecules tsis tebchaw?
Txhua qhov sib xyaw yog molecules tab sis tsis yog tag nrho cov molecules yog tshuaj sib xyaw . yog tsis compounds vim hais tias txhua tus yog tsim los ntawm ib lub ntsiab. Dej (H2O), carbon dioxide (CO2) thiab methane (CH4) yog tshuaj sib xyaw vim txhua yam yog tsim los ntawm ntau tshaj ib lub ntsiab. A molecule yog tsim thaum ob los yog ntau tshaj atoms koom ua ke chemically.
Ib yam li ntawd, dab tsi tsis yog molecule? Ib qho atoms ntawm cov ntsiab lus yog tsis molecules . Ib qho oxygen, O, yog tsis yog molecule . Thaum oxygen bonds rau nws tus kheej (piv txwv li, O2, O3) lossis rau lwm yam (piv txwv li, carbon dioxide lossis CO2), molecules raug tsim.
Kuj paub, puas molecules thiab cov tebchaw zoo ib yam?
A molecule yog tsim thaum ob los yog ntau tshaj atoms ntawm ib tug chemically koom ua ke. Thiab a compound yog hom molecule , nyob rau hauv uas hom ntawm atoms tsim cov molecule txawv ib leeg.
Yog vim li cas dej yog molecule thiab tsis yog ib tug compound?
Dej yog a molecule vim nws muaj molecular daim ntawv cog lus. Dej kuj yog ib compound vim nws yog tsim los ntawm ntau tshaj ib hom khoom (oxygen thiab hydrogen). Oxygen hauv huab cua yog a molecule vim nws muaj molecular daim ntawv cog lus. Nws yog tsis yog compound vim nws yog tsim los ntawm cov atoms ntawm tsuas yog ib lub caij - oxygen.
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