Video: Dab tsi yog cov khoom ntawm Qib 4?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Teeb meem yog txhua yam uas muaj qhov hnyav thiab siv qhov chaw. Txhua yam koj tuaj yeem pom thiab kov yog tsim los ntawm teeb meem . Teeb meem muaj nyob rau hauv peb yam tseem ceeb: khoom, kua, thiab gases. Nws kuj muaj khoom uas peb tuaj yeem piav qhia los ntawm qhov ntom ntom, solubility, conductivity, magnetism, thiab lwm yam.
Ua li no, lub cev lub cev ntawm cov teeb meem qib 4 yog dab tsi?
Qib 4 Science Physical Properties of Matter
| A | B |
|---|---|
| teeb meem yog tsim los ntawm me me _. | cov khoom |
| Particle hauv cov khoom yog _. | nyob ze ua ke thiab txav mus los |
| Cov khoom nyob rau hauv cov kua yog | swb thiab swb ib leeg. |
| Cov pa hauv cov pa yog _. | tsis nyob sib ze |
Ib sab saum toj, dab tsi yog 5 yam khoom ntawm teeb meem? Cov yam ntxwv ntawm cov teeb meem-Lub tswv yim tseem ceeb Cov lub cev muaj zog ntawm qhov teeb meem suav nrog xim , tsw, ceev , solubility, melting point, boiling point, thiab hluav taws xob conductivity. Cov no yog cov khoom uas tuaj yeem pom yam tsis muaj tshuaj lom neeg hloov cov tshuaj. 5.
Yog li ntawd, 4 yam khoom ntawm qhov teeb meem yog dab tsi?
Muaj plaub yam khoom sib txawv. Lawv yog hnyav , ntim , pawg , thiab ceev . Qhov tseem ceeb tshaj plaws yog pawg.
Dab tsi yog cov khoom ntawm teeb meem nrog piv txwv?
Piv txwv ntawm Lub cev muaj zog ntawm Matter Feem ntau siv piv txwv suav nrog ceev , xim , tsw, hardness, thiab ntim . Lub cev muaj zog tau muab cais ntxiv raws li seb lawv yog qhov dav lossis hnyav. Dav dav lub cev muaj zog yog cov uas nyob ntawm tus nqi ntawm cov khoom tam sim no.
Pom zoo:
Dab tsi yog qhov me me ntawm cov khoom uas khaws cov khoom ntawm lub caij?
Ib qho atom yog qhov tsawg tshaj plaws ntawm txhua lub caij uas tseem khaws cov yam ntxwv ntawm lub caij ntawd. Ib daim ntawm ib lub caij uas peb tuaj yeem pom lossis kov yog ua los ntawm ntau, ntau atoms thiab tag nrho cov atoms yog tib yam lawv txhua tus muaj tib tus naj npawb ntawm protons
Dab tsi yog Qhov Ib Feem Cuam Tshuam ntawm cov khoom hydrogen hauv cov methane ch4 yog dab tsi?
Cov feem pua ntawm cov ntsiab lus los ntawm Element Element Symbol Mass Percent Hydrogen H 25.132% Carbon C 74.868%
Dab tsi yog qhov zoo sib xws ntawm cov khoom thiab cov khoom sib txuas?
Cov ntsiab lus thiab cov tebchaw yog cov tshuaj homogeneous nkaus xwb thiab lawv muaj qhov sib xyaw tas li thoob plaws. Cov ntsiab lus thiab cov tebchaw tsis tuaj yeem sib cais rau hauv lawv cov khoom sib xws los ntawm kev siv lub cev. Cov tshuaj thiab cov khoom sib tov yog tsim los ntawm cov khoom sib txawv lossis cov atom sib txawv
Dab tsi yog cov khoom ntawm phosphorous acid Dab tsi yog nws cov mis?
Phosphorous acid (H3PO3) tsim cov ntsev hu ua phosphites, kuj siv los txo cov neeg ua haujlwm. Nws yog npaj los ntawm dissolving tetraphosphorus hexoxide (P4O6) los yog phosphorus trichloride (PCl3) hauv dej
Dab tsi yog txhais los ntawm lub sij hawm dissociation thiab dab tsi yog ib qho piv txwv ntawm cov khoom uas dissociates?
Dissociation, nyob rau hauv chemistry, sib cais ntawm ib yam khoom mus rau hauv atoms los yog ions. Thermal dissociation tshwm sim ntawm qhov kub thiab txias. Piv txwv li, hydrogen molecules (H 2) dissociate rau hauv atoms (H) ntawm kub heev; ntawm 5,000 ° K txog 95% ntawm cov molecules hauv cov qauv ntawm hydrogen yog dissociated rau hauv atoms