Video: Dab tsi yog cov khoom piav qhia txog kev rov ua haujlwm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Reactivity ces yog hais txog tus nqi ntawm cov tshuaj lom neeg muaj feem cuam tshuam rau cov tshuaj tiv thaiv hauv lub sijhawm. Hauv cov tebchaw ntshiab, reactivity yog tswj los ntawm cov lub cev muaj zog ntawm tus qauv. Piv txwv li, sib tsoo ib qho qauv mus rau qhov siab dua thaj chaw tshwj xeeb nce nws reactivity.
Cov lus nug tseem yog, dab tsi yog qee qhov piv txwv ntawm reactivity?
Piv txwv ntawm chemical reactivity suav nrog kev sib xyaw ua ke los ua cov tshuaj thiab sib xyaw cov tshuaj lom lom nrog cov tshuaj nyob rau hauv ib puag ncig cuam tshuam.
Qhov thib ob, puas yog reactivity yog lub cev khoom? Cov ntsiab lus. Cov khoom siv tshuaj yog khoom uas tuaj yeem ntsuas lossis pom tsuas yog thaum teeb meem hloov pauv los ua qhov sib txawv kiag li. Reactivity yog lub peev xwm ntawm cov teeb meem los ua tshuaj lom neeg nrog rau lwm yam tshuaj. Flammability yog lub peev xwm ntawm cov teeb meem los hlawv.
Raws li txoj cai, cov cuab yeej atomic twg cuam tshuam txog kev ua haujlwm?
Tus naj npawb ntawm cov electrons hauv lub plhaub sab nraud ntawm ib qho atom txiav txim nws reactivity . Noble gases muaj tsawg reactivity vim lawv muaj tag nrho cov electron plhaub. Halogen muaj ntau heev reactive vim lawv tau txais ib qho hluav taws xob los sau lawv lub plhaub sab nraud.
Dab tsi yog reactivity ntawm cov ntsiab lus?
Hauv chemistry, reactivity yog ib qho kev ntsuas ntawm qhov yooj yim npaum li cas cov khoom nkag mus rau cov tshuaj tiv thaiv tshuaj. Cov tshuaj tiv thaiv tuaj yeem koom nrog cov khoom ntawm nws tus kheej lossis nrog lwm cov atoms lossis cov khoom sib txuas, feem ntau nrog kev tso tawm ntawm lub zog. Feem ntau cov ntsiab lus reactive thiab cov tebchaw yuav ignite spontaneously los yog explosively.
Pom zoo:
Yuav ua li cas cov tsev neeg ntawm kev ua haujlwm tsis thiab cov lus piav qhia ntawm cov duab cuam tshuam?
Cov tsev neeg muaj nuj nqi yog pab pawg ua haujlwm nrog qhov zoo sib xws uas ua rau lawv yooj yim rau kev teeb tsa thaum koj paub txog kev ua haujlwm ntawm niam txiv, qhov piv txwv yooj yim tshaj plaws ntawm daim ntawv. Ib qho parameter yog qhov sib txawv hauv cov kab zauv dav dav uas siv rau ntawm tus nqi tshwj xeeb txhawm rau tsim ib qho kev sib npaug
Cov nqe lus twg zoo tshaj plaws piav qhia txog qhov tseem ceeb ntawm cov lus qhia muaj nuj nqis?
Qhov tsis suav nrog tus nqi ntawm ib qho kev qhia rational yog qhov tseem ceeb uas tus denominator ntawm qhov kev qhia yog xoom. Tsis tas li ntawd, tus naj npawb ntawm zeros ntawm ib tug polynomial yeej ib txwm tsawg dua los yog sib npaug rau degree ntawm lub polynomial. Yog li ntawd, tus naj npawb ntawm cov txiaj ntsig tsis suav nrog cov lus qhia muaj txiaj ntsig tsis tuaj yeem tshaj li qib ntawm tus lej
Plaub qhov kev piav qhia txog kev coj tus cwj pwm yog dab tsi?
Cov ntsiab lus hauv cov txheej txheem no (4) Physiological (Mechanism / Causation) tus cwj pwm muaj feem xyuam rau lub hlwb kev ua haujlwm thiab cov kev cuam tshuam uas tshwm sim nyob rau ntawd (piv txwv: qee cov tshuaj tiv thaiv kab mob tso cai rau cov tshuaj hormones los cuam tshuam lub hlwb) Ontogenetic (Kev Tsim Kho) Evolutionary (Phylogeny) Functional (Adaptation )
Cov coefficients hauv kev sib npaug tshuaj sib npaug qhia koj li cas txog cov reactants thiab cov khoom?
Cov coefficients ntawm kev sib npaug chemicalequation qhia peb cov txheeb ze ntawm moles ntawm reactants thiab cov khoom. Hauv kev daws teeb meem stoichiometric, kev hloov pauv ntawm moles ntawm reactants rau moles ntawm cov khoom raug siv. Hauv kev suav loj, cov molar loj yog xav tau los hloov cov huab hwm coj mus rau moles
Cov kab mob dab tsi muaj thiab piav qhia txog lawv txoj haujlwm?
Cov kab mob zoo li eukaryotic hlwb nyob rau hauv uas lawv muaj cytoplasm, ribosomes, thiab plasmamembrane.Cov yam ntxwv uas paub qhov txawv ntawm cov kab mob ntawm tes ntawm aeukaryotic cell muaj xws li lub voj voog DNA ntawm thenucleoid, tsis muaj daim nyias nyias organelles, lub cell phab ntsa ntawm peptidoglycan, thiab flagella