Cov txheej txheem:

Yuav ua li cas tag nrho cov compounds zoo sib xws?
Yuav ua li cas tag nrho cov compounds zoo sib xws?

Video: Yuav ua li cas tag nrho cov compounds zoo sib xws?

Video: Yuav ua li cas tag nrho cov compounds zoo sib xws?
Video: Mob nrob qaum/ Mob duav yog vim li cas? 2024, Kaum ib hlis
Anonim

Kev piav qhia: Cov tshuaj zoo li CO2 yog ua los ntawm atoms muab tso ua ke kom ruaj khov molecules. Tag nrho cov Compounds yeej ib txwm ua los ntawm atoms ntawm ntau hom los ua molecules. Cov ntsiab lus thaum lawv yog molecules yeej ib txwm ua los ntawm atoms tib yam hom.

Ua raws li qhov no hauv kev txiav txim siab, cov ntsiab lus thiab cov tebchaw zoo li cas?

A compound muaj cov atom sib txawv cov ntsiab lus chemically ua ke ua ke nyob rau hauv ib tug taag ratio. Ib keeb yog ib hom tshuaj dawb huv ua los ntawm tib hom atom. Cov tshuaj muaj qhov sib txawv cov ntsiab lus nyob rau hauv ib tug taag ratio teem nyob rau hauv ib tug txhais lus los ntawm chemical bonds.

Tsis tas li ntawd, qhov twg tsis yog qhov sib xyaw? Hydrogen gas (H2) yog molecule, tab sis tsis yog compound vim nws tsuas yog ua los ntawm ib lub ntsiab xwb. Dej (H2O) tuaj yeem hu ua molecule lossis a compound vim nws yog tsim los ntawm hydrogen (H) thiab oxygen (O) atoms. Muaj ob lub ntsiab ntawm cov khoom sib txuas uas tuav cov atoms ua ke: covalent thiab ionic / electrovalent bonds.

Ntawm no, dab tsi tuaj yeem muaj cov ntsiab lus thiab cov khoom sib xyaw ua ke?

Elements thiab compounds yog homogeneous nkaus xwb tshuaj thiab lawv muaj ib tug tas mus li muaj pes tsawg leeg thoob plaws. Elements thiab compounds tsis tuaj yeem muab cais rau hauv lawv cov khoom sib xws los ntawm kev siv lub cev. Cov tshuaj thiab kev sib tov yog ua los ntawm kev sib txawv cov ntsiab lus los yog txawv atoms.

4 hom kev sib txuas yog dab tsi?

Muaj plaub hom kev sib txuas, nyob ntawm seb cov atoms muaj pes tsawg leeg tau tuav ua ke:

  • molecules tuav ua ke los ntawm covalent bonds.
  • ionic compounds tuav ua ke los ntawm ionic bonds.
  • intermetallic compounds tuav ua ke los ntawm metallic bonds.
  • qee qhov complexes tuav ua ke los ntawm kev sib koom tes covalent bonds.

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