Lub peev xwm hla lub cell membrane uas tawm tsam qhov sib txawv ntawm ib qho ion los ntawm daim nyias nyias yog hu ua Nernst peev xwm rau qhov ion. Raws li pom saum toj no, qhov loj ntawm Nernst muaj peev xwm txiav txim siab los ntawm qhov sib piv ntawm cov concentrations ntawm cov ion tshwj xeeb ntawm ob sab ntawm daim nyias nyias
Lub ntsiab kev sib txawv ntawm cov nroj tsuag thiab tsiaj hlwb yog cov qauv ntxiv nyob rau hauv cov nroj tsuag hlwb. Cov qauv no suav nrog: chloroplasts, phab ntsa cell, thiab vacuoles. Hauv cov tsiaj hlwb, mitochondria ua rau feem ntau ntawm cov hlwb los ntawm cov khoom noj
Kraal (tseem spelled craal los yog kraul) yog ib lo lus Afrikaans thiab Dutch (tseem siv nyob rau hauv South African lus Askiv) rau ib tug enclosure rau nyuj los yog lwm yam tsiaj nyeg, nyob rau hauv ib tug Southern African kev sib haum xeeb los yog lub zos nyob ib ncig ntawm lub laj kab ntawm pos ceg ntoo, a palisade, av nkos phab ntsa, los yog lwm yam fencing, roughly ncig nyob rau hauv daim ntawv
Additive Identity Axiom hais tias tus lej ntxiv rau xoom sib npaug ntawm tus lej ntawd. Lub Multiplicative Identity Axiom hais tias tus lej sib npaug los ntawm 1 yog tus lej ntawd. Additive Inverse Axiom hais tias cov lej ntawm tus lej thiab Additive Inverse ntawm tus lej ntawd yog xoom
Cov noob caj noob ces ntawm cov xim plaub hau tseem tsis tau ruaj khov. Raws li ib txoj kev xav, tsawg kawg yog ob lub noob caj noob ces tswj tib neeg cov plaub hau xim. Ib qho phenotype (xim av / xim daj) muaj lub ntsej muag xim av thiab lub ntsej muag daj daj. Ib tug neeg uas muaj xim av allele yuav muaj plaub hau xim av; ib tug neeg uas tsis muaj xim av alleles yuav blond
Nyob rau sab laug yog tus lej atomic, lossis tus naj npawb ntawm protons. Hauv nruab nrab yog tsab ntawv cim rau lub caij (piv txwv li, H). Hauv qab no yog cov txheeb ze atomic loj, raws li xam rau cov isotopes pom nyob rau hauv lub ntiaj teb
Caking tuaj yeem tiv thaiv los ntawm kev tsim cov kev ncua nrog cov txheej txheem sib txuas uas txhawb nqa cov khoom thiab ua kom lawv tsis txhob nkag mus rau hauv qhov chaw kaw. Lub network yuav suav nrog tus neeg sawv cev ncua (cov qauv tsheb), cov khoom lawv tus kheej (flocculated), lossis kev sib xyaw ntawm ob
Molar ratios hais txog cov feem ntawm cov reactants thiab cov khoom uas siv thiab tsim nyob rau hauv ib tug tshuaj tiv thaiv. Molar ratios tuaj yeem muab tau los ntawm cov coefficients ntawm kev sib npaug tshuaj sib npaug
Vim hais tias lub hauv paus oxygen atom muaj ob leeg electron khub, nws yog cais raws li tetrahedral khoov es tsis yog trigonal planar bent. Qhov kev tsim geometric no yog tus cwj pwm los ntawm kev sib txuas cov ces kaum uas tsawg dua 109.5 degrees
Hauv ntau qhov xwm txheej, tsis muaj kev kho lossis kho rau chromosomal abnormalities. Txawm li cas los xij, kev qhia txog caj ces, kev kho mob ua haujlwm, kho lub cev thiab tshuaj yuav raug pom zoo
Limestone muaj calcium carbonate, uas muaj cov tshuaj formula CaCO3. Limestone muaj nyob rau hauv sedimentary thiab crystalline daim ntawv
Pearson khoom-lub sij hawm sib txheeb coefficient (PMCC) yog qhov ntau ntawm -1.0 thiab 1.0 uas kwv yees lub zog ntawm kev sib raug zoo ntawm ob qhov sib txawv. Lub PMCC hauv nws daim ntawv ib txwm yog me ntsis cumbersome los xam
Porphyritic kev ntxhib los mos qhia ob theem txias: qeeb, tom qab ntawd ceev. Txhais glassy kev ntxhib los mos. Glassy kev ntxhib los mos yog cov yam ntxwv ntawm cov pob zeb extrusive thiab cov ntaub ntawv los ntawm kev txias sai heev (quenching) ntawm magma. Tsis muaj crystals vim hais tias cov atoms yog 'khov' nyob rau hauv ib tug random qauv
Nyob rau hauv qab ntawm lub ntiaj teb, cov tsev no yooj yim rau cua sov thiab txias thiab nyob rau hauv thaum muaj xwm ceev los yog tej yam ntuj tso kev puas tsuaj, ib tug underground tsev yuav ua pov thawj tias yog ib qho chaw nyab xeeb
Quadratic muaj nuj nqi: Lub quadratic functionis f(x) = a * x^2 + b * x + c, uas qhia koj tias qhov kev ua haujlwm yuav zoo li graphed. B-tus nqi: Tus b-tus nqi yog tus lej nruab nrab, uas yog tus lej tom ntej thiab muab faib los ntawm x; ib qho kev hloov pauv ntawm tus nqi ntawm b cuam tshuam rau parabola thiab cov txiaj ntsig tau
Naming Acids Ib qho polyatomic ion nrog cov lus "-ate" siv cov lus "-ic" ua cov kua qaub. Thaum koj muaj polyatomic ion nrog ib qho oxygen ntau dua li "-ate" ion, ces koj cov kua qaub yuav muaj lub npe "per-" thiab cov lus "-ic." Piv txwv li, chlorate ion yog ClO3
Kev nyab xeeb ntawm Is Nrias teb tau muab faib ua tsib thaj chaw sib txawv hu ua climate zones. Hauv qab no yog lub npe ntawm thaj chaw huab cua ntawm Is Nrias teb: Tropical rainy climatic zone. Humid subtropical climatic cheeb tsam. Thaj chaw sov sov Savanna. Roob climatic tsam. Suab puam climatic tsam
Mitosis tshwm sim nyob rau hauv tag nrho cov eukaryotic animalcells, tshwj tsis yog gametes ( phev thiab qe), uas undergo meiosis. Nyob rau hauv mitosis, cell faib
Kev sib npaug ntawm Kev Sib Tw Rau Cov Khaub Ncaws Kev Ua Si nrawm nrawm, tsav tsheb, thiab txawm tias tsuas yog taug kev yog txhua txhua hnub piv txwv ntawm kev txav. Kev sib raug zoo ntawm cov khoom no yog hu ua qhov sib npaug ntawm kev txav
Deciduous txhais tau tias 'poob tawm ntawm kev loj hlob' los yog 'tending kom ntog', thiab nws yog feem ntau yog siv nyob rau hauv thiaj li yuav xa mus rau cov ntoo los yog shrubs uas poob lawv nplooj raws caij nyoog (feem ntau thaum lub caij nplooj zeeg) thiab mus rau lub shedding ntawm lwm yam nroj tsuag qauv xws li petals tom qab flowering los yog txiv hmab txiv ntoo thaum ripe
Ib lub quadrilateral nrog plaub lub kaum sab xis thiab tag nrho plaub sab ntawm qhov sib npaug. a = b = c = d. A = B = C = D = Pi/2 radians = 90o. theta = Pi/2 radians = 90o
Mol. Mole yog SI chav ntsuas ntawm kev ntsuas siv los ntsuas tus naj npawb ntawm cov khoom, feem ntau atoms lossis molecules. Ib mole ntawm ib yam dab tsi yog sib npaug rau 6.02214078 × 1023 ntawm tib yam (Avogadro tus lej)
Dehydration synthesis yog cov txheej txheem ntawm kev koom nrog ob lub molecules, los yog cov tebchaw, ua ke tom qab tshem tawm cov dej. Thaum lub sij hawm ib tug condensation cov tshuaj tiv thaiv, ob lub molecules yog condensed thiab dej ploj mus tsim ib tug loj molecule. Qhov no yog tib yam txheej txheem uas tshwm sim thaum lub sij hawm lub cev qhuav dej synthesis
Totality. Txawm hais tias muaj kev ceev faj, tag nrho cov theem ntawm hnub ci dab noj hnub - thaum lub hnub yog tag nrho los ntawm lub hli - canand yuav tsum tau saib yam tsis muaj lim. Lub qhov muag liab qab saib oftotality muaj kev nyab xeeb thiab yog qhov tshwm sim txaus ntshai tshaj plaws uas koj yuav pom
General chemistry yog kev kawm txog cov teeb meem, lub zog, thiab kev sib cuam tshuam ntawm ob. Cov ntsiab lus tseem ceeb hauv chemistry muaj xws li cov kua qaub thiab cov hauv paus, cov qauv atomic, lub sij hawm ntev, cov ntawv cog lus tshuaj, thiab tshuaj lom neeg
Volcanoes (ib qho kev tshwm sim nyob rau hauv lub geosphere) tso ib tug loj npaum li cas ntawm particulate teeb meem nyob rau hauv cov huab cua. Cov khoom no ua haujlwm ua nuclei rau kev tsim cov tee dej (hydrosphere). Cov dej nag (hydrosphere) feem ntau nce tom qab kev tawg, ua rau cov nroj tsuag loj hlob (biosphere)
2,857 ib. Tam sim no koj paub. Lub USDA Kev Pabcuam Hav Zoov tau tshaj tawm cov ntaub ntawv tseem ceeb uas kwv yees - tsis yog, muab cov lus teb meej - rau cov lus nug ob peb tau nug: Kuv lub xeev muaj pes tsawg tsob ntoo, ib tus neeg? Rau New Hampshire, cov lus teb yog 2,857
Kaum daim duab
Ammonia yog lub hauv paus tsis muaj zog vim tias nws cov nitrogen atom muaj ib khub electron uas tau txais ib qho proton. Tsis tas li ntawd, thaum yaj hauv dej, ammonia tau txais hydrogen ions los ntawm dej los tsim hydroxide thiab ammonium ions. Nws yog kev tsim cov hydroxide ions uas ua rau ammonia nws cov yam ntxwv hauv paus
Nyob rau hauv particle physics, ib tug magnetic monopole yog ahypothetical elementary particle uas yog ib qho hlau nplaum cais nrog ib tug hlau nplaum (ib tug ncej qaum teb tsis muaj ib tug southpole los yog vice versa). Magnetic monopole yuav muaj anet 'magnetic charge'
National Electrical Code (NEC) codifies yam tsawg kawg nkaus uas yuav tsum tau rau kev ruaj ntseg hluav taws xob installation nyob rau hauv ib tug, standardized qhov chaw. Txawm hais tias NEC tsis yog nws tus kheej raws li txoj cai lij choj hauv Teb Chaws Asmeskas, NEC feem ntau raug txib los ntawm lub xeev lossis txoj cai hauv zos. Qhov twg NEC tau txais, ib yam dab tsi tsawg dua yog txhaum cai
Lub tshuab ntsuas pa oxygen yog ib qho cuab yeej uas ntsuas cov qib oxygen hauv lub cev, yog li txiav txim siab seb qib yuav tsum tau nce lossis tsis. Nws siv hom oxygen sensor rau nws txoj haujlwm. Lub ntsuas ntsuas siv lub ntsuas hluav taws xob tsim los ntawm cov khoom siv ceramic los ntsuas qib oxygen
Ntau zaus txiav txim siab xim, tab sis thaum nws los txog rau lub teeb, wavelength yog qhov yooj yim los ntsuas. Qhov kwv yees zoo ntawm cov wavelengths zoo rau qhov pom spectrum yog 400 nm txog 700 nm (1 nm = 10− 9 m) txawm hais tias tib neeg feem coob tuaj yeem pom lub teeb nyob sab nraum qhov ntau
Sodium thiosulphate reacts nrog dilute acid los tsim sulfur dioxide, sulfur thiab dej. Sulfur dioxide yog cov roj uas muaj kuab lom thiab yaj tag nrho hauv cov kua dej
Cov mis rau ntsuas ntim yog qhov siab x dav x ntev. Hais, piv txwv li, koj xav ntsuas qhov ntim ntawm koj lub pas dej da dej. Koj pom tias nws ntsuas 2 meters tob (qhov siab), 10 meters dav thiab 12 meters ntev. Txhawm rau nrhiav cov cubic meters, koj muab peb ua ke: 2 x 10 x 12 = 240 cubic meters
Lub voj voog me me yog lub voj voog uas txiav lub ntiaj teb, tab sis tsis yog sib npaug. Piv txwv ntawm cov voj voog me muaj xws li tag nrho cov kab ntawm latitude tshwj tsis yog txoj kab nruab nrab, Cov Kab Mob Qav Qav Qis Cancer, Tropic ntawm Capricorn, Arctic Circle, thiab Antarctic Circle
Qhov no tso cai rau 3 billion lub hauv paus khub hauv txhua lub xov tooj kom haum rau hauv qhov chaw tsuas yog 6 microns thoob plaws. Yog tias koj ncab cov DNA hauv ib lub xovtooj ntawm txhua txoj kev tawm, nws yuav ntev li 2m thiab tag nrho cov DNA hauv koj lub hlwb muab tso ua ke yuav yog li ob npaug ntawm txoj kab uas hla ntawm lub Hnub Ci
1 Nanogram yog raws nraim 0.000000000001 kilogram (SI unit). Raws li ib tug prefix nano nws yog ib billionth ntawm ib gram; ib gram yog ib txhiab ntawm ib kilogram. 1 Picogram yog raws nraim 0.000000000000001 kilogram (SI unit). Raws li ib tug prefix pico nws yog ib trillionth ntawm ib gram; ib gram yog ib txhiab ntawm ib kilogram
Proton-proton saw yog, zoo li cov saw hlau lwj, cov tshuaj tiv thaiv. Cov khoom ntawm ib qho tshuaj tiv thaiv yog cov khoom pib ntawm cov tshuaj tiv thaiv tom ntej. Muaj ob txoj hlua khi uas ua los ntawm Hydrogen mus rau Helium hauv lub hnub. Ib lub saw muaj tsib qhov tshwm sim, lwm txoj saw muaj rau
Manganese (II) acetate yog cov tshuaj sib xyaw nrog cov mis Mn (CH3CO2) 2. (H2O)n qhov twg n = 0, 2, 4.. Nws yog siv los ua catalyst thiab ua chiv