Video: Puas yog cawv homogeneous lossis heterogeneous?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ntshav yog ib qho piv txwv ntawm a heterogeneous mix. Salad hnav khaub ncaws, av, thiab lub nroog huab cua. Qab Zib, xim, cawv , kub yog tag nrho cov piv txwv ntawm homogeneous mixsvim lawv zoo tib yam thoob plaws. Homogeneous mixsare uniformin muaj pes tsawg leeg.
Ntxiv mus, yog rubbing cawv yog homogeneous lossis heterogeneous?
Li no, nws yog a homogeneous sib tov. Ntawm qhov tod tes, a heterogeneous sib tov yog txhais raws li cov mixinwhich solute particles tsis uniformly faib intothesolvent. Piv txwv li, xuab zeb yaj hauv dej isa heterogeneous sib tov. Yog li, peb tuaj yeem xaus qhov ntawd isopropyl cawv yog a homogeneous sib tov.
Tom qab ntawd, lo lus nug yog, yog cawv yog ib qho khoom sib xyaw lossis cov khoom ntshiab? A yam khoom tuaj yeem yog dab tsi. Nws tsis tas yuav muaj ib lub ntsiab lus lossis hom molecule. Ntshiab hydrogen yog a cov khoom ntshiab . Ntshiab cawv yuav beethanol, methanol los yog a sib tov ntawm cov cawv sib txawv, tab sis sai li sai tau thaum koj ntxiv dej (uas tsis yog ib qho cawv ), koj tsis muaj ib tug lawm tshuaj ntshiab.
Ib yam li ntawd, koj tuaj yeem nug, yog npias yog homogeneous lossis heterogeneous sib xyaw?
Ib zaug ntxiv txhua cov hlau los ntawm nws tus kheej yog cov khoom ntshiab. Tsuas yog thaum lawv sib xyaw ntawm qib atomic yog lawv homogeneous sib tov (los yog kev daws teeb meem). Npias yog a homogeneous sib tov (kua kua) ntawm H2O, C2H5OH, thiab ob peb lwm yam khoom. (Tsis muaj npias molecule.
Dab tsi yog qhov txawv ntawm heterogeneous thiab homogeneous?
A homogeneous kev sib xyaw ua ke muaj qhov zoo ib yam thiab muaj pes tsawg leeg thoob plaws. Ntau homogeneous kev sib tov yog feem ntau hu ua solutions. A heterogeneous sib tov muaj visiblydifferentsubstances los yog theem. Peb theem lossis lub xeev ntawm cov teeb meem yog roj, kua, thiab khoom.
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