Video: Puas sib tov poob lossis khaws lawv cov cim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv ib qho kev sib xyaw tus (atoms / molecules) yog (chemically / physically) ua ke li ntawd tus cov ntsiab lus uas ua rau tus compound ( khaws cia / poob ) lawv tus kheej thiab ( ua / ua tsis yog) coj ntawm cov khoom tshiab. Hauv ib sib tov , tus tshuaj ( poob / khaws cia ) lawv tus kheej.
Ua li no, cov tebchaw puas khaws lawv tus kheej?
Hauv ib compound cov (atoms / molecules) yog (tshuaj lom neeg lub cev) ua ke kom cov ntsiab lus uas ua rau compound ( khaws cia / poob) lawv tus kheej thiab ( ua do tsis yog) coj ntawm cov khoom tshiab. Qhov tsawg tshaj plaws uas qhia tau tus kheej ntawm a compound yog a(n) molecule uas yog tsim los ntawm atoms uas yog chemically bonded.
Tsis tas li ntawd, vim li cas cov tshuaj hauv cov khoom sib xyaw ua ke khaws lawv cov cim? Sib tov yog kev sib txuas ntawm ob lossis ntau dua yam khoom uas tsis yog chemically ua ke. Tshuaj nyob rau hauv ib tug sib tov kom lawv tus kheej vim tsis muaj tshuaj hloov pauv thaum a sib tov ua.
Ib yam li ntawd ib tug yuav nug, puas sib tov khaws lawv cov khoom?
Mixtures khaws cia tus khoom ntawm lawv constituents vim hais tias cov constituents tsis chemically koom. Ib yam khoom khoom hloov thaum nws reacts chemically tsim ib yam khoom tshiab, tab sis tsis yog thaum nws tau ua ke nrog lwm yam khoom nyob rau hauv a sib tov . Thaum a sib tov daim ntawv muaj tsis muaj tshuaj lom neeg cov tshuaj tiv thaiv.
Puas yog cov khoom sib xyaw ib txwm ua los ntawm cov khoom?
Tseeb/False A sib tov yog ib txwm ua ntawm ib qho kev sib txuas ntawm cov ntsiab lus . Hauv ib sib tov , cov khoom (poob / khaws cia) lawv tus kheej. Nyob rau hauv ib tug compound, lub cov ntsiab lus Kev koom tes (ua tau / tsis tuaj yeem) tau spereated los ntawm cov txheej txheem lub cev yooj yim vim tias cov ntsiab lus yog (lub cev ua ke / chemically bonded).
Pom zoo:
Puas yog cawv yog sib tov lossis sib xyaw?
Technically, cawv yog lub npe ntawm cov khoom siv hauv chav kawm uas muaj ib lossis ob peb pawg hydroxyl.Anazeotrope [] yog sib xyaw ntawm ob lossis ntau dua cov kua dej uas tsis tuaj yeem hloov pauv los ntawm kev distillation yooj yim. Lwm cov khoom lag luam, xws li isopropanol thiab acetone
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Yuav ua li cas tshwm sim thaum aqueous tov ntawm sodium sulphate thiab barium chloride sib tov?
Thaum cov tshuaj aqueous ntawm sodium sulphate reacts nrog ib tug aqueous tov ntawm barium chloride, precipitate ntawm barium sulphate yog tsim thiab tom qab cov tshuaj tiv thaiv tshwm sim. ii. Yog hais tias cov reactants nyob rau hauv lub cev muaj zog, ces cov tshuaj tiv thaiv yuav tsis tshwm sim. Nws yog ib qho kev hloov pauv ob npaug nrog rau nag lossis daus
Lub organelle twg ua haujlwm raws li qhov chaw xa ntawv ntawm lub xov tooj ntawm tes txheeb cov proteins thiab xa lawv mus rau lawv qhov chaw xav tau sab hauv lossis sab nraud ntawm tes?
Golgi Hais txog qhov no, dab tsi organelle yog lub luag haujlwm rau kev thauj mus los? endoplasmic reticulum (ER Qhov thib ob, cov proteins txav mus los ntawm lub cell li cas? Cov proteins txav mus los endomembrane system thiab raug xa tawm los ntawm lub ntsej muag trans ntawm Golgi apparatus nyob rau hauv thauj vesicles uas txav mus los cytoplasm thiab tom qab ntawd fuse nrog plasma membrane tso tawm protein ntau mus rau sab nraum lub cell .
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm