Cov txheej txheem:

Cov molecules muab piv txwv li cas?
Cov molecules muab piv txwv li cas?

Video: Cov molecules muab piv txwv li cas?

Video: Cov molecules muab piv txwv li cas?
Video: ua kom poj niam los kua ntau yuav ua cas 2024, Lub peb hlis ntuj
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A molecule yog qhov tsawg tshaj plaws nyob rau hauv cov khoom siv tshuaj lossis cov khoom sib xyaw uas muaj cov khoom siv tshuaj lom neeg ntawm cov khoom lossis cov khoom sib xyaw. Molecules yog tsim los ntawm atoms uas tau tuav ua ke los ntawm cov tshuaj bonds. Piv txwv Ntawm cov ntsiab lus no yog oxygen thiab chlorine. Cov atoms ntawm qee lub ntsiab lus tsis yooj yim sib txuas nrog lwm cov atoms.

Ib yam li ntawd, koj tuaj yeem nug, 3 qhov piv txwv ntawm molecules yog dab tsi?

Piv txwv ntawm Molecules:

  • Cov pa roj carbon dioxide - CO2
  • Dej - H2O.
  • Oxygen peb ua pa rau hauv peb lub ntsws - O2
  • Qab Zib - C12H22O11
  • Glucose - C6H12O6
  • Nitrous oxide - "Laughing gas" - N2O.
  • Acetic acid - ib feem ntawm vinegar - CH3COOH. Txuas Txuas: Piv txwv. Piv txwv science.

Ib yam li ntawd, dab tsi yog qee qhov yooj yim molecules? Cov khoom ntawm yooj yim molecular Cov tshuaj Hydrogen, ammonia, methane thiab dej ntshiab kuj yog yooj yim molecules . Tag nrho cov muaj zog covalent bonds ntawm lawv cov atoms, tab sis ntau zog intermolecular zog ntawm molecules.

Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog ib tug molecule nyob rau hauv?

A molecule txhais tau tias yog ob los yog ntau dua atoms ntawm tib lub caij sib txawv uas tau khi ua ke. A molecule tej zaum yuav yog homonuclear, uas txhais tau tias, nws muaj cov atoms ntawm ib yam tshuaj, xws li oxygen (O2); los yog nws yuav yog heteronuclear, ib qho tshuaj lom neeg muaj ntau tshaj ib lub caij, xws li dej (H2O).

Yog ntsev yog molecule?

Molecules muaj molecular daim ntawv cog lus. Ib yam li rooj ntsev (NaCl) yog ib tug compound vim nws yog tsim los ntawm ntau tshaj ib hom (sodium thiab chlorine), tab sis nws tsis yog ib tug molecule vim tias daim ntawv cog lus uas tuav NaCl ua ke yog daim ntawv cog lus ionic. Yog tias koj nyiam, koj tuaj yeem hais tias sodium chloride yog ib qho ionic compound.

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