Cov khoom tsim kho ntu ntawm lub tuam txhab tsim los ntawm cov organic chemistry, thiab pab pawg neeg ua haujlwm zoo chemical, kev ua thiab ntim cov txheej txheem, cog lus tias yuav txhawb nqa cov txheej txheem muaj zog, cov khoom ruaj khov nrog cov txiaj ntsig zoo.Dhau los ua kom siv cov khoom siv ultramodern tshaj plaws hauv Nyij Pooj, Kaus Lim Kauslim, Fabkis, Lub Tebchaws Yelemees, Tebchaws Asmeskas thiab cov khoom siv tes ua ntawm cov thev naus laus zis siab, ua rau thoob ntiaj teb mus rau ntau yam kev tshawb fawb, kev nyab xeeb tshaj plaws, siv tau, qis tshaj excitive"s khoom, tam sim no, peb cov khoom muag muag zoo nyob thoob ntiaj teb.