Cov txheej txheem:
Video: Koj ua li cas sib npaug cov piv txwv tshuaj sib npaug?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Piv txwv ntawm 10 Balanced Chemical Equations
- Kev sau ntawv balanced tshuaj sib npaug yog qhov tseem ceeb rau chemistry chav kawm.
- 6 CO2 + 6 H2O → C6H12O6 + 6 aw2 ( kev sib npaug rau photosynthesis)
- 2 AgI + Na2S → Ag2S + 2 NaI.
- Ba3N2 + 6 H2O → 3 Ba(OH)2 + 2 NH3
- 3 Caab2 + 2 Nws3PO4 → Ca3(PO4)2 + 6 NaCl.
- 4 FeS + 7 O2 → 2 Peb2O3 + 4 ZOS2
Tsuas yog li ntawd, koj ua li cas sib npaug tshuaj sib npaug?
Rau tshuav nyiaj li cas a tshuaj sib npaug , pib los ntawm kev sau cov naj npawb ntawm cov atoms hauv txhua lub caij, uas tau teev nyob rau hauv subscript ntawm txhua lub atom. Tom qab ntawd, ntxiv coefficients rau cov atoms ntawm txhua sab ntawm lub kev sib npaug rau tshuav nyiaj li cas lawv nrog tib lub atoms ntawm lwm sab.
Kuj Paub, tus lej twg yog siv los sib npaug cov tshuaj sib npaug? Muaj ob hom tus lej uas tshwm hauv tshuaj sib npaug . Muaj cov subscripts, uas yog ib feem ntawm cov tshuaj cov qauv ntawm cov reactants thiab cov khoom thiab muaj cov coefficients uas muab tso rau pem hauv ntej ntawm cov qauv los qhia tias muaj pes tsawg molecules ntawm cov khoom ntawd siv los yog ua.
Tsis tas li ntawd, cov cai tswj kev ntsuas tshuaj sib npaug yog dab tsi?
Ntsuas qhov sib npaug
- Siv txoj cai lij choj ntawm kev txuag ntawm pawg kom tau txais tib tus naj npawb ntawm atoms ntawm txhua lub ntsiab ntawm txhua sab ntawm qhov sib npaug.
- Thaum ib lub ntsiab lus sib npaug, mus rau qhov sib npaug, thiab lwm qhov, kom txog thaum tag nrho cov ntsiab lus sib npaug.
- Muab cov qauv tshuaj sib npaug los ntawm kev tso cov coefficients ua ntej lawv.
Vim li cas peb thiaj sib npaug tshuaj sib npaug?
A tshuaj sib npaug yuav tsum yog sib npaug vim txoj cai lij choj ntawm kev txuag cov teeb meem yuav tsum tuav zoo thaum lub sij hawm a tshuaj sib npaug . Sib npaug ntawm kev sib npaug yog tsim nyog vim hais tias atoms tsis yog tsim los yog puas thaum lub sij hawm ib tshuaj 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 pom qhov sib piv mole li cas hauv kev sib npaug tshuaj?
Ib mole yog cov tshuaj suav tshuaj, xws li 1 mole = 6.022 * 1023 hais. Stoichiometry tseem yuav tsum tau siv cov kev sib npaug sib npaug. Los ntawm qhov sib npaug sib npaug peb tuaj yeem tau txais qhov sib piv mole. Mole ratio yog qhov piv ntawm moles ntawm ib yam khoom rau moles ntawm lwm yam khoom nyob rau hauv ib qho kev sib npaug
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
Koj ua li cas sib npaug tshuaj sib npaug nrog cov lej oxidation?
Hauv txoj kev oxidation naj npawb, koj txiav txim siab oxidation tooj ntawm tag nrho cov atoms. Tom qab ntawd koj muab cov atoms uas tau hloov los ntawm cov lej me me. Koj tab tom ua tag nrho cov poob ntawm electrons sib npaug rau tag nrho qhov nce ntawm electrons. Tom qab ntawd koj sib npaug ntawm cov atoms
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