Dab tsi yog 3 piv txwv ntawm molecules?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Nov yog cov piv txwv ntawm cov molecules:

• H₂O (dej)
• N₂ (nitrogen)
• O ₃ (ozone)
• Calcium oxide (CaO)
• C₆H₁₂O₆ (glucose, ib hom qab zib)
• NaCl (lub rooj ntsev)

Ib yam li ntawd, cov qauv ntawm cov molecules yog dab tsi?

Lwm yam paub molecules suav nrog dej, muaj ob lub hydrogen atoms thiab ib qho oxygen atom (H₂O), carbon dioxide, muaj xws li ib tug carbon atombonded rau ob oxygen atoms (CO₂), thiab sulfuric acid, muaj ob lub hydrogen atoms, ib tug sulfur atom, thiab plaub oxygenatoms (H₂ YOG₄).

Qhov thib ob, peb hom molecules yog dab tsi? Txhua yam kab mob xav tau plaub hom organic molecules: nucleicacids, proteins, carbohydrates thiab lipids; lub neej tsis tuaj yeem nyob yog tias ib qho ntawm cov molecules no ploj lawm.

• Nucleic Acids. Cov nucleic acids yog DNA thiab RNA, ordeoxyribonucleic acid thiab ribonucleic acid, feem.
• Cov protein.
• Carbohydrates.
• Lipids.

Ntawm no, 5 piv txwv ntawm molecules yog dab tsi?

• carbon dioxide -
• qabzib (ib qho yooj yim qab zib siv los ntawm cov hlwb rau lub zog) -
• sucrose (dawb qab zib) -
• sodium hydrogen carbonate (baking soda) -
• sodium hypochlorite (tshuaj dawb) -
• acetic acid (vinegar) -
• octane (qhov tseem ceeb ntawm cov roj av) -

Dab tsi yog qee qhov piv txwv ntawm cov molecules?

Piv txwv ntawm nonpolar molecules muaj xws li:

• Ib qho ntawm cov roj gasses: Nws, Ne, Ar, Kr, Xe (Cov no yog atoms, tsis yog technically molecules.)
• Ib qho ntawm homonuclear diatomic ntsiab: H₂, N₂, O₂, Cl₂ (Cov no yog tiag tiag nonpolar molecules.)
• Cov pa roj carbon dioxide - CO.
• Benzene - C₆H.
• Carbon tetrachloride - CCl.
• Methane - CH.
• Ethylene - C₂H.