Nyob hauv qee lub tsev kawm ntawv, chemistry pib nyob rau qib 7th, lwm tus tsuas yog qib 8 xwb. Chemistry yog ib qho kev tshawb fawb nyuaj, tab sis tib lub sijhawm zoo kawg thiab tseem ceeb heev. Tib neeg tseem tsis paub txhua yam txog kev tshawb fawb no. Txhua xyoo, chemists nrhiav tau ib yam tshiab ntawm peb ntiaj chaw.
Leej twg yog tus kws tshawb fawb tshuaj?
Cia peb xav txog lub ntsiab lus kom ntxaws ntxiv. Ib tug kws tshawb fawb tshuaj yog ib tug kws tshawb fawb lossis kws tshaj lij hauv kev lag luam chemistry uas tau txais kev kawm tshwj xeeb. Cov kws tshawb fawb zoo li no kawm cov tshuaj lom neeg, uas yog, teeb meem thiab nws cov khoom. Lawv siv lawv cov kev txawj ntse los kawm thiab nrhiav tau yam tshiab.
Qhov tseem ceeb tshaj plaws nrhiav pom hauv chemistry
Ntau pua qhov kev tshawb pom tseem ceeb tau pom hauv chemistry, piv txwv li, kev tshawb pom ntawm cov khoom siv tshuaj lom neeg xws li oxygen, kev kawm txog cov qauv tshuaj, kev tshawb pom ntawm electrons, radioactivity ntawm qee cov tshuaj, kev tsim cov tshuaj. periodic rooj ntawm cov ntsiab lus thiab ntau lwm yam. Tag nrho cov kev tshawb pom no yog tsim los ntawm ib tug kws tshuaj, uas thawj zaug kawm lawv, thiab tom qab ntawd, raws li kev paub tau txais, sim kos cov lus xaus thiab nrhiav tau qee yam ntawm nws tus kheej.
Russian chemists
Russian chemists khaws nrog lwm tus. Nrog txhuaxyoo chemistry thiab biology yog xaiv los ntawm ntau thiab ntau cov menyuam kawm ntawv thiab cov tub ntxhais kawm.
Russia yog nto moo rau cov kws tshawb fawb, piv txwv li, xws li Mikhail Vasilievich Lomonosov, uas kawm txog molecular kinetic txoj kev xav, Dmitry Ivanovich Mendeleev, uas tau tsim ib lub sij hawm tsis tseem ceeb ntawm txhua yam tshuaj thiab sau thawj phau ntawv organic hauv Russia, Vladimir. Vasilyevich Markovnikov (kawm roj thiab ntau lwm yam tshuaj).
Tej zaum tus kws tshuaj Lavxias nto moo tshaj plaws yog Dmitry Ivanovich Mendeleev, uas cov tub ntxhais kawm tau hais rau thawj zaug chemistry. Tus kws tshawb fawb-chemist no tau tsim ib lub rooj ntawm cov ntsiab lus ntawm lub sijhawm, ua tsaug uas nws yooj yim dua thiab yooj yim dua rau kev kawm chemistry. Tsis tas li ntawd, nws tau sau ntau pua txoj haujlwm, ua ntau txhiab qhov kev sim thiab kev tshawb fawb. Nws txoj haujlwm yog kawm los ntawm cov tub ntxhais kawm hauv tsev kawm qib siab. Tau ntau xyoo Dmitry Ivanovich ua hauj lwm nyob rau hauv lub tsev kawm ntawv, qhov uas nws tau qhia rau cov tub ntxhais kawm zoo tib yam. Niaj hnub no, tag nrho nws tej hauj lwm yog ib tug tiag tiag storehouse ntawm kev paub rau beginner chemists.
Chemistry yog ib qho kev kawm nyuaj heev, tab sis tsim nyog hauv lub neej tiag tiag. Chemistry kawm txhua yam nyob ib puag ncig peb, uas tso cai rau peb nyob hauv lub ntiaj teb no. Ua tsaug rau qhov kev tshawb fawb no, peb tau kawm ntau ntxiv txog peb lub ntiaj teb. Tus kws tshawb fawb tshuaj tiag tiag yuav tsum nyiam qhov kev tshawb fawb no, niaj hnub kawm ib yam tshiab.
