Tshuaj lom neeg yog ib hom teeb meem uas muaj cov tshuaj lom neeg tsis tu ncua thiab cov yam ntxwv zoo. Qee cov ntaub ntawv hais ntxiv tias cov tshuaj tsis tuaj yeem muab cais rau hauv nws cov ntsiab lus los ntawm kev sib cais ntawm lub cev, piv txwv li, yam tsis muaj kev cuam tshuam tshuaj lom neeg.
tshuaj txhais tau tias txhais li cas?
Raws li lub npe, lub ntsiab lus txhais ntawm cov tshuaj yog ib yam khoom uas tsim los yog siv nyob rau hauv ib tug txheej txheem (kev tshwm sim) cuam tshuam nrog kev hloov pauv rau atoms lossis molecules.. Chemistry yog kawm txog qhov teeb meem thiab nws qhov kev hloov pauv.
tshuaj lom neeg thiab nws qhov piv txwv yog dab tsi?
Tshuaj txhais tau tias yog qee yam ntsig txog chemistry lossis kev siv tshuaj. Ib qho piv txwv ntawm cov tshuaj tsw qab yog qhov tsw ntawm Lysol. Ib qho piv txwv ntawm cov tshuaj yog qhov kev vam khom rau yeeb tshuaj yeeb lossis cawv. … Ib yam khoom uas muaj ib qho molecular muaj pes tsawg leeg, tau los ntawm los yog siv nyob rau hauv ib tug chemical txheej txheem.
Cov piv txwv tshuaj yog dab tsi?
Piv txwv ntawm cov tshuaj muaj xws li cov tshuaj, xws li zinc, helium, thiab oxygen; cov tebchaw ua los ntawm cov khoom xws li dej, carbon dioxide, thiab ntsev; thiab ntau cov ntaub ntawv nyuaj xws li koj lub computer, huab cua, nag, qaib, tsheb, thiab lwm yam.
Txhua yam tshuaj phem?
Tshuaj tuaj yeem yog ntuj lossis hluavtaws, tab sis qhov ntawd tsis tsis txhais tau tias nyab xeeb lossis txaus ntshai. Ntau cov tshuaj hluavtaws muaj kev nyab xeeb tag nrhotib neeg, thaum qee yam tshuaj lom neeg tuaj yeem ua rau tuag taus, thiab muaj nyob hauv cov khoom noj xws li txiv apples, almonds thiab qos yaj ywm. Thiab ib qho lus hais txog kev ua neej tsis muaj tshuaj lom neeg yog qhov tsis muaj tseeb.
