Cov txheej txheem:
Video: Cov molecules muab piv txwv li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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.
Pom zoo:
Yam ua piv txwv piv txwv li cas?
Ib khub xaj yog ib khub ntawm tus lej hauv ib qho kev txiav txim. Piv txwv li, (1, 2) thiab (- 4, 12) raug txiav ua khub. Qhov kev txiav txim ntawm ob tus lej tseem ceeb: (1, 2) tsis sib npaug rau (2, 1) -- (1, 2) ≠ (2, 1)
Dab tsi yog cov nyhuv tshuaj ntawm hluav taws xob muab qee qhov piv txwv ntawm cov nyhuv tshuaj?
Ib qho piv txwv ntawm cov tshuaj muaj zog hauv cov hluav taws xob tam sim no yog electroplating. Hauv cov txheej txheem no, muaj cov kua dej uas muaj hluav taws xob dhau mus. qhov no yog ib qho piv txwv ntawm kev siv tshuaj lom neeg hauv hluav taws xob tam sim no
Cov kev hloov ntawm lub cev txawv ntawm cov tshuaj hloov pauv li cas muab ib qho piv txwv ntawm txhua tus?
Kev hloov tshuaj lom neeg tshwm sim los ntawm cov tshuaj tiv thaiv tshuaj, thaum lub cev hloov pauv yog thaum cov teeb meem hloov pauv tab sis tsis yog tshuaj lom neeg. Piv txwv ntawm kev hloov tshuaj lom neeg yog hlawv, ua noj, xeb, thiab rotting. Piv txwv ntawm kev hloov lub cev yog boiling, melting, khov, thiab shredding
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Thaum muab piv cov qauv sau rau ib tus neeg raug liam cov ntaub ntawv lub hnub nyoog sib txawv ntawm cov ntaub ntawv yuav tsum tsis pub tshaj kaum ob lub hlis?
Thaum piv cov qauv sau rau tus neeg raug liam? cov ntaub ntawv, lub hnub nyoog sib txawv ntawm cov ntaub ntawv yuav tsum tsis pub ntau tshaj rau rau kaum ob lub hlis. Tus lej txaus ntawm tus qauv yog qhov tseem ceeb rau kev txiav txim siab qhov tshwm sim ntawm kev sib piv