Video: Hom atoms nyob rau hauv oxygen?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ntawm qhov ntsuas kub thiab siab, oxygen yog pom raws li ib tug gas muaj ob oxygen atoms , tshuaj formula O2.
Tsis tas li ntawd, cov atoms hauv oxygen yog dab tsi?
Ib qho oxygen atom hnyav dua li ib hydrogen los yog helium atom, thiab hnyav dua li carbon atom. Tias yog vim li cas lub atom oxygen muaj yim protons thiab yim neutrons, thiab yim electrons mus ncig sab nraud.
Qhov thib ob, puas yog oxygen ua los ntawm atoms lossis molecules? Molecules ntawm cov ntsiab lus feem ntau yog tsim los ntawm tsuas yog ib qho ntawm cov atom ntawm cov khoom ntawd. Oxygen, nrog rau nitrogen , hydrogen, thiab chlorine yog tsim los ntawm ob lub atom.
Tsis tas li ntawd, pes tsawg atoms muaj nyob hauv oxygen?
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Yam khoom dab tsi yog oxygen?
Oxygen yog yim keeb ntawm lub sijhawm teem sijhawm thiab tuaj yeem pom nyob rau hauv kab thib ob (lub sijhawm). Ib leeg, oxygen yog ib qho xim tsis muaj xim thiab tsw ntxhiab uas yog cov pa roj ntawm chav tsev kub. Oxygen molecules tsis yog tib daim ntawv ntawm oxygen nyob rau hauv huab cua; koj kuj yuav pom oxygen raws li ozone (O3) thiab carbon dioxide (CO2).
Pom zoo:
Muaj pes tsawg moles ntawm oxygen atoms nyob rau hauv ib mole ntawm Al2O3?
(c) 1 molecule ntawm Al2O3 muaj 3 atoms ntawm oxygen. Yog li, 1 mole ntawm Al2O3 muaj
Lub khw muag khoom oxygen nyob qhov twg hauv lub voj voog carbon oxygen?
Nroj tsuag thiab photosynthetic algae thiab cov kab mob siv lub zog los ntawm tshav ntuj los ua ke cov pa roj carbon dioxide (C02) los ntawm huab cua nrog dej (H2O) los tsim cov carbohydrates. Cov carbohydrates no khaws lub zog. Oxygen (O2) yog ib qho khoom siv uas tso tawm rau hauv qhov chaw. Cov txheej txheem no hu ua photosynthesis
Muaj pes tsawg oxygen atoms nyob rau hauv chalk?
1 gm mole ntawm CaCO3 muaj 6.022 x 10^23 (lub npe hu ua Avogadro No) molecules. Txhua lub molecule muaj 3 oxygen atoms, yog li koj tuaj yeem xam tus naj npawb ntawm O atoms hauv cov units uas koj tau tshem tawm kom suav nrog
Yuav ua li cas tshwm sim rau atoms nyob rau hauv cov tshuaj tiv thaiv raws li Dalton lub atomic txoj kev xav?
Dalton's Atomic Theory Tag nrho cov atoms ntawm ib lub caij yog tib yam. Cov atoms ntawm cov ntsiab lus sib txawv sib txawv hauv qhov loj thiab loj. Cov tshuaj yog tsim los ntawm kev sib txawv ntawm cov lej sib txawv ntawm cov atoms. Cov tshuaj tiv thaiv tshuaj ua rau muaj kev hloov pauv ntawm cov atoms hauv cov reactant thiab cov khoom sib txuas
Yuav ua li cas yog lub sum ntawm cov atomic masses ntawm tag nrho cov atoms nyob rau hauv ib tug qauv rau ib tug compound?
Cov mis loj ntawm ib yam khoom yog qhov sib npaug ntawm qhov nruab nrab atomic masses ntawm txhua lub atom sawv cev hauv cov tshuaj formula thiab qhia nyob rau hauv atomic mass units. Cov mis loj ntawm covalent compound tseem hu ua molecular mass