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Video: Cov tebchaw twg yog tsim los ntawm cov molecules?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Chemical compound, ib yam khoom uas muaj cov molecules zoo tib yam uas muaj cov atoms ntawm ob los yog ntau tshaj cov ntsiab lus tshuaj
- Methane, uas plaub lub atoms hydrogen raug khi rau ib qho carbon atom, yog ib qho piv txwv ntawm ib qho yooj yim. chemical compound .
- Ib dej molecule yog ua li ntawm ob lub atom hydrogen thiab ib qho oxygen atom.
Kuj nug, puas yog tag nrho cov tebchaw tsim los ntawm molecules?
A compound yog a ua molecule ntawm atoms los ntawm cov khoom sib txawv. Txhua qhov sib xyaw yog molecules , tab sis tsis yog tag nrho cov molecules yog tshuaj sib xyaw . Hydrogen gas (H2) yog a molecule , tab sis tsis yog a compound vim yog ua ntawm ib lub ntsiab xwb.
Tsis tas li ntawd, dab tsi yog hom molecules ntawm cov ntsiab lus thiab cov tebchaw? HOM MOLECULES
- Diatomic Molecules - Ib lub atom diatomic yog tsim los ntawm ob lub atoms, ntawm tib yam lossis sib txawv tshuaj.
- Heteronuclear Diatomic Molecules - Ib qho heteronuclear diatomic molecule muaj ob ntawm atoms ntawm tib lub caij ua ke.
- OXYGEN MOLECULE.
- CARBON MONOXIDE MOLECULE (CO)
Tsis tas li ntawd, dab tsi yog txhais los ntawm molecules ntawm ib qho kev sib txuas?
A molecular compound yog tsim thaum ob los yog ntau tshaj atoms koom ua ke chemically los ntawm covalent bonds. Ib qho compound yuav suav tias yog molecule uas muaj tsawg kawg yog ob yam sib txawv. Tag nrho tshuaj sib xyaw yog molecules tab sis tsis yog tag nrho molecules yog tshuaj sib xyaw.
Puas yog dej sib xyaw?
Dej Oxidane
Pom zoo:
Dab tsi yog cov tebchaw tab sis tsis yog molecules?
Txhua qhov sib xyaw ntawm atoms yog ib qho molecule. Ib qho kev sib txuas yog ib qho molecule ua los ntawm atoms los ntawm cov khoom sib txawv. Tag nrho cov tebchaw yog molecules, tab sis tsis yog tag nrho cov molecules yog cov tebchaw. Hydrogen gas (H2) yog ib qho molecule, tab sis tsis yog ib qho kev sib xyaw vim nws tsuas yog ua los ntawm ib lub ntsiab lus xwb
Qhov kev sib npaug twg yog qhov tsim nyog los suav cov cua sov uas tsim los ntawm HCl NaOH cov tshuaj tiv thaiv?
Xam cov naj npawb ntawm moles ntawm lub hauv paus koj ntxiv los txiav txim siab molar tshav kub ntawm qhov nruab nrab, qhia siv qhov sib npaug Δ H = Q ÷ n, qhov twg 'n' yog tus naj npawb ntawm moles. Piv txwv li, xav tias koj ntxiv 25 mL ntawm 1.0 M NaOH rau koj HCl los ua kom muaj cua sov ntawm nruab nrab ntawm 447.78 Joules
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