Video: Qhov loj 2 txhais li cas hauv 2h2o?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Teb rau Nov 30, 2019. Heavy dej ( 2 H2O ) Tom qab ntawd 2 qhia tau hais tias muaj ob atoms ntawm hydrogen nyob rau hauv amolecule dej. Nyob ntawd yog kuj yog ib tug atom ntawm oxygen tab sis thenumber one yog tshem tawm los ntawm cov tshuaj formula.
Ua li no, lub npe 2h2o yog dab tsi?
Manganese (II) sulfate dihydrate
| PubChem CID: | 22613964 |
|---|---|
| Molecular Formula: | H4MnO6S |
| Cov npe tshuaj: | MnSO4.2H2O manganese sulfate dihydrate manganese(II) sulfatedihydrate manganese(2+) sulfate dihydrate manganese(II) sulphatedihydrate Ntau |
| Molecular Luj: | 187,03 g / mol |
| Hnub tim: | Hloov: 2019-08-24 Tsim: 2007-12-05 |
Kuj Paub, hom tshuaj tiv thaiv yog 2h2o2 2h2o o2? Tsis yog ib qho hom tshuaj tiv thaiv . Qhov no yog decomposition / electrolysis tshuaj tiv thaiv : 2 H2O = 2 H2 + O2 thiab qhov no yog thesynthesis/combustion/oxidation tshuaj tiv thaiv : 2 H2 + O2 = 2 H2O.
Kuj nug, qhov txawv ntawm h2o thiab 2h2o yog dab tsi?
Cov tshuaj tiv thaiv tiag tiag los ua dej yog me ntsis ntxiv: 2H2 + O2 = 2 H2O + Zog. Hauv lus Askiv, qhov sib npaug hais tias: Los tsim ob lub molecules ntawm dej ( H2O ), ob lub molecules ntawm diatomic hydrogen (H2) yuav tsum tau ua ke nrog ib molecule ntawm diatomic oxygen (O2).
Lub 3 pem hauv ntej ntawm o2 sawv rau dab tsi?
A) Qhia tias muaj yog 5 oxygen atoms tom qab koj ntxiv cov coefficient thiab subscript. C) Nws qhia tias muaj yog 3 oxygen molecules chemically bonded rau ib leeg nyob rau hauv thereaction.
Pom zoo:
Dab tsi yog qhov txawv ntawm qhov pom tseeb qhov loj thiab qhov ntsuas qhov ntsuas qhov tseeb?
Dab tsi yog qhov txawv ntawm qhov pom tseeb thiab qhov tseeb? Pom meej qhov loj npaum li cas yog qhov ci ntawm lub hnub qub tshwm los ntawm lub ntiaj teb thiab nyob ntawm qhov ci thiab qhov deb ntawm lub hnub qub. Qhov loj npaum li cas yog qhov ci ntawm lub hnub qub yuav tshwm sim los ntawm tus qauv nyob deb
Qhov txawv ntawm qhov loj ntawm ib tug proton thiab qhov loj ntawm ib tug electron yog dab tsi?
Protons thiab neutrons muaj kwv yees li qub, tab sis lawv yog ob qho tib si loj dua li cov hluav taws xob (kwv yees li 2,000 npaug loj li electron). Tus nqi zoo ntawm ib qho proton yog sib npaug hauv qhov loj rau qhov tsis zoo ntawm tus electron
Dab tsi yog qhov pom tseeb qhov loj thiab qhov loj kawg nkaus?
Astronomers txhais lub hnub qub ci nyob rau hauv cov ntsiab lus ntawm qhov pom tseeb - qhov ci ntawm lub hnub qub tshwm los ntawm lub ntiaj teb - thiab qhov loj npaum li cas - lub hnub qub ci ci li cas ntawm qhov kev ncua deb ntawm 32.6 lub teeb xyoo, lossis 10 parsecs
Dab tsi yog qhov yuam kev loj tshaj plaws yog tias Irina ntsuas qhov ntev ntawm nws lub qhov rais li 3.35 feet qhov yuam kev loj tshaj plaws yog taw?
Kev daws: Qhov yuam kev loj tshaj plaws hauv kev ntsuas ntsuas tau txhais tias yog ib nrab ntawm qhov ntsuas ntsuas
Dab tsi yog qhov pom huab loj loj ntawm cov pa roj thiab plua plav hauv qhov chaw nruab hnub?
Qhov no nebula ( huab cua thiab plua plav hauv qhov chaw ) yog lub hnub qub ci ntsa iab. Lub Spitzer Space Telescope coj daim duab no nyob rau hauv lub teeb infrared, uas ci los ntawm huab cua plua plav kom pom cov hnub qub tshiab tau yug hauv nws. Star-forming Fingers: Cov huab zoo nkauj, ci ntsa iab ntawm plua plav no hu ua Eta Carinae Nebula