Video: Thaum ntsuas qhov sib npaug tshuaj koj tsuas yog hloov tau?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thaum twg koj tshuav ib kev sib npaug koj tsuas hloov tau coefficients (tus lej nyob rau hauv pem hauv ntej ntawm molecules los yog atoms). Coefficients yog cov lej nyob rau hauv pem hauv ntej ntawm lub molecule. Subscripts yog cov lej me dua tom qab atoms. Cov no ua tsis tau hloov thaum sib npaug tshuaj sib npaug !
Raws li, qhov twg yog tib qho uas tuaj yeem hloov pauv tau thaum koj sib npaug ntawm qhov sib npaug ntawm lub cev?
Tsuas yog coefficients hloov tau nyob rau hauv thiaj li yuav tshuav nyiaj li cas ib qho tshuaj kev sib npaug . Subscripts yog ib feem ntawm cov tshuaj formula rau reactants los yog cov khoom thiab hloov tsis tau rau balance ib equation . Hloov subscript kev hloov cov khoom sawv cev los ntawm cov qauv.
Qhov thib ob, thaum ntsuas cov tshuaj tiv thaiv kab mob ntau npaum li cas peb hloov kho? Thaum twg koj hloov cov coefficients, koj ' tsuas yog hloov cov tus lej ntawm cov molecules ntawm cov khoom tshwj xeeb. Txawm li cas los xij, thaum koj hloov cov subscripts, koj hloov cov khoom nws tus kheej, uas yuav ua rau koj tshuaj sib npaug yuam kev.
Tsis tas li cov lus nug yog, vim li cas koj thiaj li hloov tsis tau cov mis kom sib npaug ntawm cov tshuaj tiv thaiv?
Koj ua tsis tau hloov subscripts hauv tshuaj qauv rau tshuav nyiaj li cas ib qho tshuaj kev sib npaug ; koj ua tau hloov tsuas yog cov coefficients. Hloov subscripts hloov qhov ratios ntawm atoms nyob rau hauv lub molecule thiab lub resulting tshuaj zog. Piv txwv li, dej (H2O) thiab hydrogen peroxide (H2O2) yog cov tshuaj sib txawv.
Qhov twg hauv qab no tsis tuaj yeem ua tiav thaum ntsuas qhov sib npaug tshuaj?
Thaum twg balancing ib chemical equation , koj yeej tsis tau hloov subscripts ntawm ib qho twg tshuaj formula . e. Hauv tshuaj tshuaj tiv thaiv, teeb meem yog tsis tsim los yog rhuav tshem li ntawd a chemical equation yuav tsum muaj pes tsawg tus atoms ntawm ob sab ntawm lub kev sib npaug.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Koj tuaj yeem qhia tau li cas yog tias ob qhov sib npaug sib npaug?
Peb tuaj yeem txiav txim siab los ntawm lawv qhov sib npaug seb puas yog ob kab sib npaug los ntawm kev sib piv lawv cov nqes hav. Yog hais tias cov slopes yog tib yam thiab cov y-intercepts txawv, cov kab yog parallel. Yog tias txoj kab nqes sib txawv, cov kab tsis sib npaug. Tsis zoo li cov kab sib luag, cov kab perpendicular sib tshuam
Puas yog txhua qhov sib npaug sib npaug sib npaug?
Thawj qhov sib npaug sib npaug yog qhov tseeb yog tias nws muaj kev txuag kom muaj nuj nqis. Piv txwv li, qhov sib npaug sib cais yeej ib txwm muaj tseeb, txij li lub ntsiab lus lawv yog ntawm daim ntawv: M(y) + N(t) = 0, yog li ϕ(t, y) = A(y) + B(t) yog a khaws cia kom muaj nuj nqis
Puas yog nws ua tau rau ib qho kev sib npaug ntawm ob txoj kab sib npaug kom tsis muaj kev daws teeb meem piav qhia koj qhov laj thawj?
Cov kab ke ntawm kab sib npaug tuaj yeem tsuas muaj 0, 1, lossis ib qho kev daws teeb meem tsis kawg. Ob kab no tsis tuaj yeem hla ob zaug. Cov lus teb raug yog tias qhov system muaj ib qho kev daws teeb meem. Total Number of Points Number of 2-Point Baskets Number of 3-Point Baskets 17 4 (8 ntsiab lus) 3 (9 points) 17 1 (2 points) 5 (15 points)
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no