Cov txheej txheem:
Video: Dab tsi yog hom kev sib txuas uas muaj zog tshaj plaws hauv cov zaub mov?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
covalent
Yog li ntawd, hom kev sib cog lus dab tsi yog feem ntau hauv cov zaub mov?
Chemical bonds nyob rau hauv cov zaub mov muaj plaub hom: covalent , ionic, metallic, los yog Van der Waals, nrog covalent thiab ionic daim ntawv cog lus feem ntau. Ob lossis ntau dua ntawm cov nyiaj no tuaj yeem sib koom ua ke hauv ntau cov zaub mov.
Tsis tas li ntawd, 4 hom kev sib cog lus yog dab tsi? 4 Hom Tshuaj Bonds
- 1 Ionic daim ntawv cog lus. Ionic bonding cuam tshuam nrog kev hloov ntawm ib qho hluav taws xob, yog li ib lub atom tau txais ib qho hluav taws xob thaum ib lub atom poob ib qho hluav taws xob.
- 2 Covalent bond. Kev sib cog lus ntau tshaj plaws hauv cov organic molecules, covalent daim ntawv cog lus koom nrog kev sib koom ntawm electrons ntawm ob lub atoms.
- 3 Polar daim ntawv cog lus.
Ib yam li ntawd ib tug yuav nug, dab tsi yog qhov kev sib raug zoo tshaj plaws hauv chemistry?
2/ yog covalent daim ntawv cog lus muaj siab polarity ntxiv rau siab molecular mass thiab symmetrical uas pab nyob rau hauv packing ces covalent daim ntawv cog lus ntawm cov khoom yuav muaj zog dua.
Cov khoom siv tshuaj muaj zog tshaj plaws yog covalent daim ntawv cog lus.
- Dab tsi yog daim ntawv cog lus tshuaj hu ua tsim los ntawm kev sib koom ntawm electrons?
- Ib qho chaw puas tuaj yeem muaj ntau tshaj ib daim ntawv cog lus?
Cov ntawv cog lus dab tsi tuaj yeem muaj cov pob zeb hauv pob zeb?
Hom Bonding hauv Crystals
- Ionic Bonds. Thaum cov ionic muaju tsim, cov electrons dhia lawv lub orbits mus rau kev sib raug zoo nrog cov khoom txhawb nqa atom.
- Covalent Bonds. Covalent daim ntawv cog lus, raws li lub npe qhia, yog cov qauv siv lead ua uas cov electrons tsis tawm ntawm lawv lub orbits.
- Van der Waals Bonds.
- Hydrogen Bonds.
- Hlau Bonds.
Pom zoo:
Dab tsi hloov cov tshuaj zog hauv cov zaub mov rau hauv daim ntawv uas siv tau yooj yim dua?
Mitochondria muaj nyob rau hauv koj lub hlwb, nrog rau cov hlwb ntawm cov nroj tsuag. Lawv hloov lub zog khaws cia hauv cov molecules los ntawm broccoli (los yog lwm yam roj molecules) rau hauv daim ntawv ntawm tes siv tau
Dab tsi yog qhov yuam kev loj tshaj plaws yog tias Irina ntsuas qhov ntev ntawm nws lub qhov rais li 3.35 feet qhov yuam kev loj tshaj plaws yog taw?
Kev daws: Qhov yuam kev loj tshaj plaws hauv kev ntsuas ntsuas tau txhais tias yog ib nrab ntawm qhov ntsuas ntsuas
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom
Hom kev sib txuas dab tsi yog yam ntxwv ntawm cov khoom uas muaj qhov kub siab melting point?
Ionic lattice Tag nrho cov ionic tebchaw muaj lub siab melting point thiab boiling point vim hais tias muaj ntau zog ionic bonds yuav tsum tau tawg. Lawv ua thaum molten los yog nyob rau hauv kev daws raws li cov ions yog dawb txav. Lawv tuaj yeem tawg los ntawm electrolysis. Lawv feem ntau yog soluble hauv dej
Dab tsi organelle hloov cov tshuaj zog uas khaws cia hauv cov zaub mov rau hauv lub zog siv tau?
Mitochondria yog cov organelles ua haujlwm uas ua rau lub cell muaj zog. Hauv cov nroj tsuag ntawm tes, chloroplast ua rau cov suab thaj thaum lub sij hawm cov txheej txheem ntawm photosynthesis hloov lub teeb lub zog mus rau hauv tshuaj lub zog khaws cia hauv qabzib