Cov txheej txheem:
Video: Dab tsi yog tsib yam pov thawj uas koj tuaj yeem siv los txiav txim seb puas muaj tshuaj lom neeg tshwm sim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qee cov cim qhia ntawm a tshuaj kev hloov pauv yog kev hloov xim thiab tsim cov npuas. Cov tsib tej yam kev mob ntawm tshuaj kev hloov pauv: xim chage, tsim cov precipitate, tsim cov roj, tsw hloov, kub hloov.
Ntawm no, 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 yam li ntawd, dab tsi yog tib txoj hauv kev los ua pov thawj tias muaj tshuaj lom neeg tshwm sim? Cov nkaus xwb kom paub meej a tshuaj tiv thaiv los yog hloov tau tshwm sim yog kuaj qhov muaj pes tsawg leeg ntawm tus qauv ua ntej thiab tom qab kev hloov pauv. Thaum dej npau rau ntawm qhov cub, ua a tshuaj hloov lossis hloov lub cev? Nws ua rau lub cev hloov pauv, vim tsis muaj cov khoom tshiab tsim.
Hais txog qhov no, 4 hom pov thawj ntawm cov tshuaj tiv thaiv tshuaj yog dab tsi?
Piav plaub hom pov thawj ntawm cov tshuaj tiv thaiv . Ib xim hloov , tsim los ntawm precipitate los yog ib tug roj, los yog kub hloov yog cov pov thawj ntawm a tshuaj tiv thaiv.
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.
Pom zoo:
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom loj tshwm sim ntawm koj cov khaub ncaws?
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom ntau tshwm sim ntawm koj cov khaub ncaws? Koj mus ncaj qha rau da dej kev nyab xeeb thiab sawb ntawm tag nrho koj cov khaub ncaws
Koj tuaj yeem sim ua li cas thiaj txiav txim siab seb qhov sib xyaw puas yog ionic lossis covalent?
Muaj ob peb txoj hauv kev los txiav txim siab seb daim ntawv cog lus yog ionic lossis covalent. Los ntawm kev txhais, daim ntawv cog lus ionic yog nruab nrab ntawm cov hlau thiab cov hlau tsis muaj hlau, thiab covalent daim ntawv cog lus yog nruab nrab ntawm 2 nonmetals. Yog li koj feem ntau tsuas yog saib ntawm lub rooj zaum thiab txiav txim siab seb koj cov khoom puas yog ua los ntawm cov hlau / nonmetal lossis tsuas yog 2 nonmetals xwb
Dab tsi txiav txim siab cov khoom siv tshuaj lom neeg ntawm atom quizlet?
Cov khoom siv tshuaj ntawm ib lub caij yog txiav txim los ntawm tus naj npawb ntawm valence electrons. Daim duab kos duab hluav taws xob yog ib qho qauv ntawm ib qho atom uas txhua lub dot sawv cev rau valence electron
Dab tsi yog peb qhov kev soj ntsuam uas yuav qhia tau tias muaj tshuaj lom neeg tshwm sim?
Cov hauv qab no tuaj yeem qhia tau tias 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
Ib yam dab tsi puas tuaj yeem hloov pauv lub cev thiab tshuaj lom neeg?
Kev hloov pauv tsis tuaj yeem yog ob qho tib si lub cev thiab tshuaj, tab sis lub cev thiab tshuaj hloov pauv tuaj yeem tshwm sim ib txhij. Qhov no yog dab tsi tshwm sim nrog lub tswm ciab hlawv: lub wax yog yaj, uas yog ib qho kev hloov ntawm lub cev, thiab nws yog combusting, uas yog ib tug tshuaj hloov. Tsis muaj kev hloov pauv hauv cov tshuaj formula ntawm cov khoom