Video: Dab tsi yog qhov sib xyaw ua ke?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A compound muaj atoms ntawm cov ntsiab lus sib txawv chemically ua ke nyob rau hauv ib tug taag ratio. 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. Cov khoom xyaw muaj cov ntsiab lus sib txawv thiab tshuaj sib xyaw tab sis qhov piv tsis tau kho thiab tsis tau ua ke los ntawm kev sib cog lus tshuaj.
Ntawm no, dab tsi yog qhov sib xyaw ua ke thiab cov piv txwv piv txwv?
Cov tshuaj yog cov khoom tsim los ntawm atoms sib txawv cov ntsiab lus koom nrog kev sib cog lus tshuaj. Lawv tsuas tuaj yeem sib cais los ntawm cov tshuaj tiv thaiv tshuaj. Feem ntau piv txwv yog dej (H2O), ntsev (sodium chloride, NaCl), methane (CH4). A sib tov yog tsim los ntawm kev sib xyaw ua ke cov ntsiab lus thiab tshuaj sib xyaw . Tsis muaj cov ntawv cog lus tshuaj tshiab tsim.
Kuj Paub, puas yog ib qho kev sib xyaw ib txwm sib xyaw? A compound ib txwm muaj tib yam muaj pes tsawg leeg. Cov khoom xyaw tuaj yeem muaj qhov sib txawv. A compound muaj cov atoms ntawm ob lossis ntau lub ntsiab lus uas muaj tshuaj lom neeg sib koom ua ke. A sib tov muaj ob los yog ntau yam khoom uas yog lub cev intermingled nyob rau hauv sib txawv proportions.
Kuj kom paub, piv txwv ntawm ib qho kev sib txuas yog dab tsi?
A compound yog ib yam khoom uas tsim los ntawm ob lossis ntau lub ntsiab lus. Ib txhia piv txwv ntawm tshuaj sib xyaw muaj xws li cov hauv qab no: dej, carbon dioxide, thiab lub rooj ntsev.
Dab tsi yog qhov sib xyaw thiab cov khoom sib xyaw ua ke?
Compounds thiab mix yog tsim los ntawm cov khoom sib txawv lossis txawv atoms. A compound tuaj yeem tawg mus rau hauv nws cov ntsiab lus. Qee qhov piv txwv ntawm tshuaj sib xyaw yog sodium chloride ( feem ntau ntsev), dej, thiab lwm yam A sib tov yog tsim los ntawm ob lossis ntau lub ntsiab lus lossis tshuaj sib xyaw nyob rau hauv ib tug tsis-taw piv.
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