Cov txheej txheem:

Dab tsi yog 4 pov thawj ntawm kev hloov tshuaj lom neeg?
Dab tsi yog 4 pov thawj ntawm kev hloov tshuaj lom neeg?

Video: Dab tsi yog 4 pov thawj ntawm kev hloov tshuaj lom neeg?

Video: Dab tsi yog 4 pov thawj ntawm kev hloov tshuaj lom neeg?
Video: Saib Mis paub Poj niam (hluas nkauj) tus yam ntxwv lub siab 2024, Tej zaum
Anonim

Piav plaub hom ntawm pov thawj ntawm cov tshuaj tiv thaiv . Ib xim hloov , tsim los ntawm precipitate los yog ib tug gas, los yog kub kev hloov yog cov pov thawj ntawm a tshuaj tiv thaiv.

Tsis tas li ntawd, 5 qhov pov thawj ntawm kev hloov tshuaj lom neeg yog dab tsi?

Tsib txawv cov cim xws li tsw, kub hloov , precipitate tsim, zus tau tej cov pa npuas, thiab ib tug xim hloov.

Ib tug kuj yuav nug, dab tsi yog 7 cov cim qhia ntawm cov tshuaj tiv thaiv tshuaj? Xya yam uas qhia tias muaj kev hloov tshuaj lom neeg tshwm sim

  • Gas npuas tshwm. Gas npuas tshwm tom qab muaj tshuaj lom neeg cov tshuaj tiv thaiv tau tshwm sim thiab cov sib tov ua saturated nrog roj.
  • Tsim ib tug Precipitate.
  • Xim hloov.
  • Kub Hloov.
  • Kev tsim lub teeb.
  • Hloov ntim.
  • Hloov hauv tsw lossis saj.

Ib yam li ntawd, tib neeg nug, dab tsi yog cov pov thawj rau cov tshuaj tiv thaiv tshuaj?

Cov hauv qab no tuaj yeem qhia tau tias muaj kev hloov tshuaj lom neeg tau tshwm sim, txawm hais tias cov pov thawj no tsis muaj tseeb:

  • Hloov cov ntxhiab tsw.
  • Hloov cov xim (piv txwv li, nyiaj rau reddish-xim av thaum hlau xeb).
  • Hloov hauv qhov kub lossis lub zog, xws li kev tsim khoom (exothermic) lossis poob (endothermic) ntawm tshav kub.

10 chemical pauv piv txwv yog dab tsi?

Kaum piv txwv ntawm kev hloov tshuaj lom neeg yog:

  • Hlawv cov thee, ntoo, ntawv, kerosene, thiab lwm yam.
  • Tsim cov curd los ntawm mis nyuj.
  • Electrolysis ntawm dej los tsim hydrogen thiab oxygen.
  • Rusting ntawm hlau.
  • Kev tawg ntawm cracker.
  • Ua noj ua haus.
  • Kev zom zaub mov.
  • Germination ntawm noob.

Pom zoo: