2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Yog li ntawd, cov halide uas tsis oxidized los ntawm MnO2 yog fluoride ion i.e., F−. Yog li, kev xaiv (A) yog cov lus teb raug.
Qhov twg hauv qab no tuaj yeem oxidized los ntawm kev siv MnO2?
Nws yog siv rau hauv cov roj teeb uas siv hauv tsheb. Rau cov lus nug peb paub tias MnO2 yog ib qho tshuaj oxidising me me uas oxidises thawj thiab theem nrab benzylic cawv. Cov benzylic cawv yog oxidized los tsim aldehydes. C6H5CH2OH yog benzylic cawv uas yog oxidised los ntawm MnO2 rau aldehyde.
Yuav ua li cas hauv qab no tsis yog oxidized los ntawm O3?
KMnO4 tsis tuaj yeem oxidized ntxiv los ntawm O3. Nws muaj qhov siab tshaj plaws +7 oxidation xeev ntawm Mn hauv nws. Alkaline KI yog oxidised rau poov tshuaj iodate thiab periodate.
Uas tsis tau oxidized los ntawm bromine dej?
Bromine dej yog cov tshuaj oxidizing me me uas xaiv oxidizes aldehyde rau carboxylic acid nkaus xwb. Nws tsis oxidize cawv lossis ketone. Cov tshuaj tiv thaiv ntawm cov piam thaj nrog dej bromine los tsim cov kua qaub gluconic yog qhia hauv qab no.
Qhov twg halide yooj yim oxidised?
Iodine yog qhov tsawg tshaj plaws ntawm cov halogens. Nws yog qhov tsis muaj zog oxidizing tus neeg sawv cev, thiab iodide ionyog qhov yooj yim tshaj plaws oxidized halide ion.
Pom zoo:
Qhov twg halide ntawm nitrogen yog qhov tsawg tshaj plaws?
Fluorine yog cov electronegative tshaj plaws rub cov electron ceev ntawm nws thiab yog li nws nyuaj rau nitrogen atom pub dawb rau ib leeg ntawm electron. Down pab pawg raws li electronegativity txo qhov pib nce. Yog li, NF3 yog qhov tsawg kawg nkaus nitrogen trihalide.
Qhov twg yog hais txog qhov kaj los yog qhov tsaus ntuj ntawm qhov ntxoov ntxoo?
Vim yog hais txog qhov kaj los yog qhov tsaus ntuj ntawm cov xim. Lub teeb xim yog tint. … Xim tsaus yog hu ua ntxoov ntxoo. Lub kaw lus hu ua dab tsi los txiav txim qhov kaj thiab qhov tsaus ntuj ntawm cov xim? Hue txawv ib xim ntawm lwm tus thiab piav qhia siv cov npe xim xws li ntsuab, xiav, liab, daj, thiab lwm yam.
Ntawm qhov twg los qhov twg los?
Cov pov thawj ntxov tshaj plaws ntawm keeb kwm surfing keeb kwm niaj hnub nthwv dej raws li peb paub niaj hnub no yog xav tias muaj keeb kwm Hawaii. Keeb kwm ntawm surfing hnub rau c. AD 400 hauv Hawaii, qhov chaw Polynesians pib ua lawv txoj kev mus rau Hawaiian Islands tuaj ntawm Tahiti thiab Marquesas Islands.
Qhov twg hauv qab no yog qhov piv txwv ntawm qhov tsis suav nrog cov lej tsis suav nrog?
Pi is a non-terminating, non-repeating decimal. π=3.141 592 653 589 793 238 462 643 383 279 … e is a non-terminating, non-repeating decimal. Ib qho piv txwv ntawm tus lej tsis suav nrog yog dab tsi? Piv txwv: 0.5, 2.456, 123.456, thiab lwm yam.
Vim li cas qhov tseem ceeb ntawm qhov muaj zog thiab qhov tsis muaj zog yog qhov tseem ceeb?
Nws yog ib qho tseem ceeb rau qhov tseem ceeb ntawm qhov ua tau zoo thiab qhov tsis muaj zog vim qhov no pab lub tuam txhab txiav txim siab txog thaj chaw uas lawv yuav tsum tau txhim kho ntxiv rau thaj chaw uas lawv ua tau zoo hauv. Vim li cas lub zog thiab qhov tsis muaj zog tseem ceeb?
