Cov txheej txheem:

Yuav ua li cas koj nrhiav tau cov lus compound?
Yuav ua li cas koj nrhiav tau cov lus compound?

Video: Yuav ua li cas koj nrhiav tau cov lus compound?

Video: Yuav ua li cas koj nrhiav tau cov lus compound?
Video: yuav coj li cas kom luag nyiam 2024, Kaum ib hlis
Anonim

Thaum ob lus siv ua ke los ua ib lub ntsiab lus tshiab, a compound yog tsim. Cov lus sib xyaw tuaj yeem sau ua peb txoj hauv kev: raws li qhib tshuaj sib xyaw (Spelled li ob lus , e.g., ice cream), kaw tshuaj sib xyaw (sib koom ua ib leeg lus , e.g., doorknob), los yog hyphenated tshuaj sib xyaw (ob tug lus koom nrog ib tug hyphen, piv txwv li, mus sij hawm ntev).

Hauv qhov no, lo lus piv txwv yog dab tsi?

Cov lus sib xyaw raug tsim thaum ob lossis ntau dua lus tau koom ua ke los tsim ib qho tshiab lus uas muaj lub ntsiab lus tshiab nkaus. Rau piv txwv , "hnub" thiab "paj" yog ob qho sib txawv lus , tab sis thaum fused ua ke, lawv tsim lwm tus lus , paj noob hlis.

hmo no puas yog lus sib xyaw? Hmo no yog ib 7 tsab ntawv lus , siv raws li ib tug noun los yog ib tug adverb, a lus sib , nrog cov lus Askiv qub, thiab muaj cov ntawv ghinott (ghinot). A lus sib , hmo no muaj ntau tshaj ib lus hauv nws. Muaj 2 lus uas yog rau, thiab hmo ntuj.

Yog li ntawd, muaj pes tsawg lo lus sib xyaw muaj?

Muaj peb hom lus sib xyaw: kaw daim ntawv, qhib daim ntawv, thiab hyphenated. Kaw cov lus sib xyaw ua ke yog tsim thaum ob lub siab ywj pheej, cov lus tshwj xeeb tau ua ke los tsim cov lus tshiab. Cov no yog cov feem ntau hom lus compound.

Dab tsi yog 5 piv txwv ntawm kev sib txuas?

Piv txwv ntawm Compounds:

  • Dej - qauv: H2O = Hydrogen2 + Oxygen.
  • Hydrogen Peroxide - Cov roj formula: H2O2 = Hydrogen2 + Oxygen2
  • Ntsev - Formula: NaCl = Sodium + Chlorine.
  • Baking Soda - Formula: NaHCO3 = Sodium + Hydrogen + Carbon + Oxygen3
  • Octane - Formula: C8H18 = Carbon8 + Hydrogen18

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