Video: Cov qauv qauv ua tiav yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ua kom tiav cov qauv qauv . Ua kom tiav cov qauv qauv qhia tag nrho cov atoms nyob rau hauv ib lub molecule, hom kev sib txuas nrog lawv, thiab seb lawv txuas nrog ib leeg. Rau ib qho yooj yim molecule zoo li dej, H2O, cov molecular formula , ua H-O-H, the qauv qauv.
Tsis tas li ntawd, tus qauv qauv qauv yog dab tsi?
A tshuaj formula Qhov no qhia tau hais tias yuav ua li cas cov atoms ua ib lub compound yog teem nyob rau hauv lub molecule. Rau piv txwv , cov qauv qauv ntawm aspirin yog CH3COOC6H4COOH, qhia tias nws muaj ib pawg acetyl (CH3COO) txuas rau carboxylic acid (COOH) ntawm ib pawg phenyl (C6H4). Sib piv empirical qauv.
Ib tug kuj yuav nug, dab tsi yog condensed structural formula? Nws qhia tag nrho cov atoms, tab sis tshem tawm cov ntawv cog lus ntsug thiab feem ntau lossis tag nrho cov kab rov tav ib daim ntawv cog lus. Nws siv cov kab lus los qhia tias pawg polyatomic nyob rau hauv ib qauv yog txuas rau qhov ze tshaj plaws uas tsis yog-hydrogen atom ntawm sab laug.
Kuj kom paub, qhov qauv qauv qhia dab tsi?
A qauv qauv qhia cov atom ntawm cov molecule nyob rau hauv qhov kev txiav txim lawv yog ua phooj ywg. Nws kuj piav txog yuav ua li cas cov atoms yog kev sib raug zoo rau ib leeg, piv txwv li ib leeg, ob npaug, thiab triple covalent daim ntawv cog lus. Covalent bonds yog qhia siv kab.
Tus qauv qauv ntawm h2o yog dab tsi?
Rau dej, lub molecule yog tsim los ntawm ob lub hydrogen atoms thiab ib tug oxygen atom, yog li nws molecular formula yog H2O . Qhov no kuj sawv cev rau qhov yooj yim piv ntawm atoms nyob rau hauv lub molecule, yog li nws empirical qauv yog H2O.
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