Hydroxide OH- muaj nqi ntawm -1. Oxygen muaj tus lej oxidation -2 thiab hydrogen muaj tus lej oxidation +1
Txhawm rau nrhiav thaj tsam ntawm lub xwmfab no, peb muab qhov ntev ntawm nws tus kheej, lossis square nws. Qhov chaw, 4x2, yog cov khoom ntawm tus lej (4) thiab qhov sib txawv nrog tus lej suav tag nrho (x2). Hauv lwm lo lus, nws yog monomial, ib yam nkaus. Yog li qhov tshwm sim ntawm kev sib faib ob monomial yog-lwm monomial
Ntxiv zog xws li hluav taws xob ua rau cov hydrogen atoms resonate thiab emit raws li lawv oscillation ceev thiab muab tawm electromagnetic hluav taws xob (photons) uas ua rau cov Hydrogen tsis emit dab tsi yog pom los ntawm lub qhov muag raws li lub teeb xiav thaum nyob rau hauv lub iav raj thiab hluav taws xob. khiav ntawm nws
Lub cotangent ntawm x txhais tau tias yog cosine ntawm x muab faib los ntawm sine ntawm x: cot x = cos x sin x. Lub secant ntawm x yog 1 muab faib los ntawm cov cosine ntawm x: sec x = 1 cos x, thiab cov cosecant ntawm x txhais tau tias yog 1 faib los ntawm cov sine ntawm x: csc x = 1 sin x
Muaj ob qhov laj thawj: Txhawm rau muab hydrogen ions rau cov tshuaj kom acidify nws. Qee qhov redox (xws li permanganate) muaj peev xwm oxidation zoo dua yog tias ua tau rau hauv qhov chaw acidic. Lub sulfate ion yog ib qho nyuaj ion rau oxidise nyob rau hauv ib txwm redox titrations, yog li koj tsis nquag tau byproducts
Vim tias qhov thib 4 qhov tseem ceeb tshaj plaws atom tau muab tso rau hauv qab, lub xub yuav tsum tshwm sim zoo li nws hla lub ntsej muag ntawm lub moos. Yog tias nws mus clockwise, ces nws yog R-enantiomer; Yog hais tias nws mus counterclockwise, nws yog S-enantiomer
Fossil pob zeb yog cov khoom tsim, hloov, lossis hloov los ntawm txheej txheem hu ua fossilization. Cov txheej txheem no hloov cov ntaub ntawv organic hauv pob zeb lossis pob zeb nrog cov zaub mov uas nkag mus rau hauv pob zeb lossis lwm yam khoom thaum kawg hardening
Worrall speculates tias cov ntoo nqus tau lub zog los ntawm lawv cov hauv paus hniav, nws thiaj li tua cov hauv paus hniav thiab tiv thaiv kev loj hlob ntawm aspen sprouts tshiab. Aspen tsis yog tib tsob ntoo uas muaj teeb meem hauv Rockies. Cov koob ntawm ntau spruce thiab ntoo thuv hauv Colorado yog tinged nrog liab, ib qho cim ntawm bark beetle infestation
Asexual reproduction yog kev yug me nyuam yam tsis muaj kev sib deev. Nyob rau hauv daim ntawv no ntawm kev yug me nyuam, ib tug tib neeg lub cev los yog cell ua ib daim qauv ntawm nws tus kheej. Cov noob ntawm tus thawj thiab nws cov ntawv luam yuav zoo ib yam, tshwj tsis yog kev hloov pauv tsis tshua muaj. Lawv yog clones. Cov txheej txheem tseem ceeb ntawm kev yug me nyuam asexual yog mitosis
Ntxiv 2 tablespoons baking soda rau hauv cov dej qab zib fwj maj mam siv koj lub funnel. Cov baking soda thiab vinegar yuav fizz.Cov pa uas tau muab tawm yog carbon dioxide. Ntxiv cov baking soda kom txog thaum tsis muaj fizzing ntxiv
Yuav ua li cas cov electron configurations nyob rau hauv tib pawg ntawm cov ntsiab lus piv? Cov ntsiab lus nyob rau hauv tib pab pawg muaj tib lub valence electron configurations. Qhov no txhais tau tias lawv tau ua tiav s thiab p sublevels uas muab rau lawv 'stable octet' ntawm electrons nyob rau hauv lawv cov txheej txheem
Eosin methylene xiav (EMB, tseem hu ua 'Levine's formulation') yog ib qho kev xaiv rau cov kab mob Gram-negative. EMB muaj cov dyes uas muaj tshuaj lom rau cov kab mob Gram-zoo. EMB yog qhov nruab nrab xaiv thiab sib txawv rau cov coliforms. Nws yog ib qho kev sib xyaw ntawm ob stains, eosin thiab methylene xiav hauv qhov sib piv ntawm 6: 1
Dawb radicals tsis yog tsuas yog tsim nyob rau hauv peb lub cev lub cev thaum lub sij hawm homeostasis tab sis kuj los ntawm kev kis mus rau lwm qhov chaw xws li ib puag ncig muaj kuab paug, tshuaj lom hlau, luam yeeb, thiab tshuaj tua kab, uas ntxiv kev puas tsuaj rau peb lub cev lub nra ntawm oxidative kev nyuaj siab
Cov pa pa tawm los ntawm Mexico City 3 lab lub tsheb (kwv yees) yog qhov tseem ceeb ntawm cov pa phem. Cov teeb meem uas tshwm sim los ntawm qhov siab ntawm cov pa tawm yog exacerbated los ntawm qhov tseeb tias Mexico City nyob hauv lub phiab. Lub geography tiv thaiv cua los ntawm cua los ntawm cov pa phem, ntxiab nws saum lub nroog
Tus qauv ntawm lub ntiaj teb. [/caption] Cov qauv loj ntawm Lub Ntiaj Teb yog ua los ntawm cov voids thiab filaments, uas tuaj yeem tawg mus rau hauv superclusters, pawg, galaxy pawg, thiab tom qab ntawd mus rau hauv galaxies
Lub zog uas tsis khaws lub zog yog hu ua nonconservative lossis dissipative rog. Kev sib txhuam yog lub zog tsis ruaj khov, thiab muaj lwm yam. Ib qho kev sib txhuam-hom quab yuam, zoo li huab cua tsis kam, yog lub zog tsis ruaj khov. Lub zog uas nws tshem tawm ntawm lub cev tsis muaj nyob rau hauv lub system rau kinetic zog
Haldane thiab Oparin theorized tias 'kua zaub' ntawm cov organic molecules ntawm lub ntiaj teb thaum ub yog lub hauv paus ntawm lub neej lub tsev thaiv. Kev sim los ntawm Miller thiab Urey tau pom tias tej yam tshwm sim ntawm lub ntiaj teb thaum ntxov tuaj yeem tsim cov organic molecules uas xav tau rau lub neej kom tshwm sim
Ob leeg Vibrio fischeri thiab tsiaj (piv txwv li Hawaiian Bobtail Squid) muaj peev xwm tau txais txiaj ntsig los ntawm kev sib raug zoo symbiosis. Cov kab mob no muaj tsev thiab muaj zaub mov ntau. Qhov no tsis muaj teeb meem rau squid (los yog lwm yam tsiaj). Cov txiaj ntsig rau tus tsiaj yog tias lawv tau camouflage los ntawm cov tsiaj txhu
Kev sib cais ntawm thaj chaw yog lub tswv yim ntawm kev khaws cov ntaub ntawv tseem ceeb (piv txwv li, thaub qab) hauv ob qhov chaw, ib qho ntawm cov nyob sab nraud ntawm lub cev ntawm cov chaw tseem ceeb uas cov ntaub ntawv feem ntau khaws cia, thiab nyiam dua nyob rau hauv thaj chaw sib txawv kiag li
Kev sib npaug tsis sib xws. npe. Kev sib npaug tsis sib haum yog txhais tias yog ob lossis ntau qhov sib npaug uas tsis tuaj yeem daws tau raws li kev siv ib txheej ntawm qhov tseem ceeb rau qhov sib txawv. Ib qho piv txwv ntawm cov kab zauv tsis sib xws yog x + 2 = 4 thiab x + 2 = 6. YourDictionary txhais thiab siv piv txwv
Lub antonym los yog opposite ntawm lo lus "Singularity" nyob ntawm cov ntsiab lus uas nws siv. Thaum peb tham txog lub xeev, qhov tseeb, qhov zoo, los yog cov xwm txheej ntawm kev ua ib yam dab tsi los yog hais txog ib tug peculiarity los yog ib tug khib ntawm ib tug neeg ces lo lus opposite uas yuav siv tau yog conformity, tib yam, normality, normality thiab lwm yam
Ntau yam ntawm Microsoft Excel ua haujlwm uas koj yuav tau siv los ua kom tiav cov matrix kev ua haujlwm ntawm kev ua haujlwm - rov qab ntau dua ib qho nqi atatime. Txhawm rau nkag mus rau qhov kev ua haujlwm array rau hauv aMicrosoftExcel daim ntawv ua haujlwm, koj yuav tsum tuav CTRL thiab SHIFT yuam sij thaum nias tus yuam sij ENTER: CTRL + SHIFT + ENTER
Lub zog ionization ntawm cov ntsiab lus nce ntxiv raws li ib qho txav mus rau ib pab pawg vim hais tias cov electrons tau tuav hauv qis zog orbitals, ze rau lub nucleus thiab yog li nruj dua khi (nrawm tshem tawm)
Nitric acid yog corrosive acid thiab muaj zog oxidizing tus neeg sawv cev. Concentrated nitric acid stains tib neeg cov tawv nqaij daj vim nws cov tshuaj tiv thaiv nrog keratin. Cov stains daj no tig txiv kab ntxwv thaum nruab nrab. Cov teebmeem hauv lub cev tsis zoo li, txawm li cas los xij, thiab cov tshuaj tsis suav tias yog carcinogen lossis mutagen
RADIOACTIVE WHITE-I yog qeb qis tshaj thiab RADIOACTIVE YELLOW-III yog qhov siab tshaj. Piv txwv li, ib pob nrog kev thauj mus los ntawm 0.8 thiab qhov siab tshaj plaws ntawm cov hluav taws xob saum npoo ntawm 0.6 millisievert (60 millirems) ib teev yuav tsum dais daim ntawv RADIOACTIVE YELLOW-III
Lub holly oak yog ib tsob ntoo ntsuab ntsuab uas dav li nws siab nrog lub ntsej muag tuab tuab. Nws muaj cov tawv grey du. Cov nplooj yog tawv, glossy, tsaus ntsuab thiab sib txawv ntawm qhov loj thiab cov duab. Holly Oak tolerates ntau yam av textures, ntsev, thiab drought, tab sis rhiab heev rau txias
High-leg delta (tseem hu ua wild-leg, stinger leg, bastard leg, high-leg, orange-leg, or red-leg delta) yog ib hom kev pabcuam hluav taws xob sib txuas rau peb-theem hluav taws xob fais fab kev teeb tsa. Lub zog peb-theem txuas nrog hauv qhov kev teeb tsa delta, thiab qhov chaw nruab nrab ntawm ib theem yog grounded
Yog li, tus naj npawb oxidation ntawm chromium nyob rau hauv cov khoom xyaw yog +6
Txhais ntawm chemically active extraction. cov txheej txheem kev sib cais uas siv cov tshuaj acid-base chemistry los hloov ib qho kev sib xyaw --> hloov nws cov solubility tso cai rau kev sib cais ntawm qhov sib tov
Ib yam khoom uas tsis muaj BPA yog ib qho uas tsis siv cov organic compound Bisphenol A hauv nws qhov kev tsim kho. Yav dhau los muaj ntau yam khoom yas xws li cov me nyuam lub raj mis, cov phaj yas thiab cov tais diav, cov thawv ntim khoom thiab lub raj mis haus tau ua los ntawm BPA
Radius ntawm curvature yog lub vojvoog ntawm lub voj voog uas kov lub nkhaus ntawm ib qho chaw thiab muaj qhov sib npaug thiab qhov nkhaus ntawm qhov taw tes. Radius yog qhov nrug nruab nrab ntawm qhov chaw thiab lwm qhov taw tes ntawm lub voj voog ntawm lub voj voog lossis qhov chaw ntawm tus kheej. Nyob rau hauv lub voj voog koj yuav tsum siv lub sij hawm radius
Primary = ib qho carbon txuas rau tsuas yog IB lwm cov pa roj carbon. Secondary = ib tug carbon txuas rau tsuas yog ob qho tib si carbons. Tertiary = ib qho carbon txuas rau peb lwm cov carbons
Kev tso tawm ntawm lub zog ua rau muaj kev co ntawm qhov chaw hauv av. Qhov chaw nyob hauv lub ntiaj teb uas av qeeg pib yog hu ua qhov tsom. Lub ntsiab lus ntawm lub ntiaj teb nto ncaj qha saum lub tsom xam yog hu ua epicenter. Qhov kev sib tsoo muaj zog tshaj plaws tshwm sim ntawm qhov chaw epicenter
Yog tias ab = cd, ces, ab = cd = a + cb + d yog lub npe hu ua addendo khoom ntawm kev faib ua feem
Thaum cov ntaub ntawv hlau tau nchuav ib ncig ntawm cov hlau nplaum, cov duab ntawm cov hlau nplaum raug ntes. Vim li cas qhov no tshwm sim? Tsis tas li ntawd, cov ntaub ntawv hlau no cais ua cov qauv pom tseeb ntawm cov kab
Kev kawm txog cov nroj tsuag hauv kev saib xyuas kev noj qab haus huv pab txhawb kev tsim cov tshuaj tshiab thiab kev kho mob rau cov kab mob loj. Botany ua haujlwm hauv kev ua liaj ua teb pab cov neeg ua liaj ua teb siv cov kev cog qoob loo zoo tshaj plaws thiab kev cog qoob loo los txhim kho kev ua haujlwm zoo thiab ua haujlwm zoo thaum cog qoob loo
Hydrogen atoms tawm ntawm 1420 MHz (ib lub wavelength ntawm 21 cm). Hydroxyl molecules, tsim los ntawm ib lub atom ntawm hydrogen thiab ib atom ntawm oxygen (OH), tawm ntawm plaub lub xov tooj cua tshwj xeeb xws li 1612 MHz txog 1720 MHz
Cov plua plav hauv tsev feem ntau yog cov tawv nqaij pov tseg, yog li kuv tau hnov. Ib pawg ntawm cov plua plav yuav zoo li greyish tab sis, yog tias koj ntxiv dej peb nyob rau hauv tib qhov xwm txheej xws li 'damp daim ntaub' xov uas tau khiav tib lub sijhawm raws li qhov no. Yog tias cov hmoov av los ntawm Sahara, nws ua rau kuv lub tsheb zoo li liab - tshwj xeeb tshaj yog tom qab lub teeb los nag
Chaw Sib Tw yog ib qho ntawm kev sib tham sib nta ntawm Socrative. Qhov no tso cai rau cov tub ntxhais kawm ua haujlwm ua khub lossis pab pawg me txhawm rau teb cov lus nug ntawm Socrative quiz. Thaum lawv teb cov lus nug, cov tub ntxhais kawm "kev sib tw" los ua thawj pab neeg hla txoj kab tiav
Ib qho kev hloov pauv yog qhov chaw nres tsheb, ib ntus lossis mus tas li, uas yog siv los ua piv txwv ntawm cov cuab yeej sib txuas. Txij li thaum lub ntsiab lus tig yog siv los txuas ntxiv qhov kev tshawb fawb thawj zaug, nws qhov siab yuav tsum tau rov qab tau zoo (tsawg kawg rau lub sijhawm nws yuav siv sij hawm txav lub ntsuas thiab saib rov qab rau nws)