Cov txheej txheem:
Video: Dab tsi yog cov ions feem ntau?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2024-01-18 08:15
Yuav ua li cas txog Common Ions? Cov ntawd yog dab tsi?
- Feem ntau Yooj yim Cations: aluminium Al3+, calcium CA2+,cop kub2+, hydrogen H+, ferrous hlau Fe2+, ferric hlau Fe3+, magnesium Hg2+, mercury (II) Mg2+, poov tshuaj K+, nyiaj Ag+, Sodium Na+.
- Feem ntau Anions yooj yim: chloride C–, fluoride F–, bromide ua–, Oxide ua2-
Hais txog qhov no, dab tsi yog 4 feem ntau ions?
Plaub qhov ntau tshaj ions hauv lub cev yog poov tshuaj , sodium , calcium , thiab chloride.
Tsis tas li ntawd, dab tsi yog qhov feem ntau ion rau oxygen? Oxygen , O. Oxygen yog nyob rau hauv pab pawg 6. Nws muaj rau electrons nyob rau hauv nws lub plhaub txheej. Nws tau txais ob lub tshuab hluav taws xob los ntawm ib lossis ob lub atoms hauv cov tshuaj tiv thaiv, tsim cov oxide ion , O 2-.
Qhov thib ob, dab tsi yog cov ions nquag?
- lead (IV) ion.
- tin (IV) ion.
- mercury (I) ion *
- manganese (II) ion.
- cobalt (III) ion.
- tooj liab (II) ion.
- hlau (III) ion.
- manganese (III) ion.
Puas yog HCl yog cation lossis anion?
HCl , uas muaj cov anion chloride, hu ua hydrochloric acid . HCN, uas muaj cov anion cyanide, hu ua hydrocyanic acid. Cov cai rau npe Oxyacids ( anion muaj cov ntsiab lus oxygen): Vim tias tag nrho cov acids muaj tib yam cation , H +, peb tsis tas yuav sau npe cation.
Pom zoo:
Dab tsi ntawm cov organic molecule feem ntau yog siv los ua lub zog rau cov hlwb?
Adenosine 5'-triphosphate, lossis ATP, yog cov khoom siv hluav taws xob ntau tshaj plaws hauv cov hlwb. Cov molecule no yog tsim los ntawm nitrogen puag (adenine), ribose qab zib, thiab peb pawg phosphate. Lo lus adenosine yog hais txog adenine ntxiv rau ribose qab zib
Dab tsi yog Qhov Ib Feem Cuam Tshuam ntawm cov khoom hydrogen hauv cov methane ch4 yog dab tsi?
Cov feem pua ntawm cov ntsiab lus los ntawm Element Element Symbol Mass Percent Hydrogen H 25.132% Carbon C 74.868%
Dab tsi yog qhov pH ntau ntawm cov tshuab tsis siv neeg feem ntau?
Ntau lub tshuab buffering muaj nyob hauv lub cev uas pab tswj cov pH ntawm cov ntshav thiab lwm cov kua dej hauv qhov nqaim - nruab nrab ntawm pH 7.35 thiab 7.45. Ib qho tsis yog ib yam khoom uas tiv thaiv kev hloov pauv ntawm cov kua dej pH los ntawm kev nqus dej ntau dhau los yog hydroxyl ions
Cov xim dab tsi yog cov hlwb feem ntau ua ntej siv thawj cov xim rau cov txheej txheem Gram stain?
Ua ntej, siv lead ua violet, thawj stain, yog siv rau lub tshav kub-tso smear, muab tag nrho cov hlwb xim liab
Qhov twg ntawm cov ntsiab lus hauv qab no feem ntau pom nyob rau hauv feem ntau cov chiv?
Cov tshuaj chiv niaj hnub suav nrog ib lossis ntau tshaj ntawm peb lub ntsiab lus tseem ceeb tshaj plaws hauv cov zaub mov noj: nitrogen, phosphorus, thiab potassium. Qhov tseem ceeb thib ob yog cov ntsiab lus sulfur, magnesium, thiab calcium