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- O2是什么气体 - 百度知道
同义词 O2一般指氧气（氧元素形成的一种单质） 氧气（oxygen），化学式O2。化学式量：32 00，无色无味气体，氧元素最常见的单质形态。熔点-218 4℃，沸点-183℃。不易溶于水，1L水中溶解约30mL氧气。在空气中氧气约占21% 。液氧为天蓝色。固氧为蓝色晶体。
- What is the difference between O O2 - Chemistry Stack Exchange
$\ce O$ is a free oxygen atom and $\ce{O2}$ is two oxygen atoms chemically bound to form an oxygen molecule There is no common analogy for $\ce C$, but $\ce{N2}$ is called nitrogen, $\ce{H2}$ is hydrogen and $\ce{Cl2}$ is chlorine, each having the same name as that of their constituent elements
- O2·-这个超氧阴离子自由基的点·是什么意思?-表示什么意思?2应该是下角标吧?_百度知道
这里的"-"表示它带有一个负电荷。"2"作为下标，表明氧原子的价电子配置。自由基的特点在于分子结构中存在一个不配对的电子，而在这个O2·-中，这个不稳定的单电子被标注在(π*2pz)1的位置。分子轨道的描述中，这个特殊的(π*2pz)轨道就承载了这个单电子。
- 氧根的种类有哪些（过氧根·超氧根什么的） - 百度知道
o2−（超氧根），是氧气分子的单电子还原产物，其性质活泼，易与多种大分子物质结合而使其失去活性。 如HO2 超氧酸。 O22−（过氧根），结构为－O－O－ 的二价阴离子，同样性质活泼，易发生歧化反应，既可被氧化，又可被还原。
- 乙醇催化氧化反应方程式 - 百度知道
2ch3ch2oh+o2→2ch3cho+2h2o(条件为催化剂)(这是总方程式) 乙醇发生消去反应的方程式: ch3ch2oh→ch2=ch2+h2o(条件为浓硫酸170摄氏度) 两分子乙醇发生分子间脱水:2ch3ch2oh→ch3ch2och2ch3+h2o。
- How does O2- have the largest radius - Chemistry Stack Exchange
O2-: Two electrons are added there is more inter-electronic repulsion, so the radius increases (and it is more than F-, because here two electrons are added but in F- only one electron was added) In these questions where we compare the radius of isoelectronic species, i e species with same number of electrons, we compare the ratio of Nuclear charge (Z) to the number of electrons(e) ratio
- Whats the difference between 2O and O2 [duplicate]
$\begingroup$ The 2 O represents two separate oxygen atoms, ( not connected to one another so free to move around and react independently ), the $\ce{O2}$ is molecular oxygen $\endgroup$ – porphyrin
- How can carbon dioxide be converted into carbon and oxygen?
$\begingroup$ @GregE generating oxygen is a separate concern from CO2 removal (i e wouter dorgelo's 'providing astronauts with fresh oxygen' stated in the context of CO2 conversion to C and O2) Yes, you can generate O2 via electrolysis, but it is the concentration of CO2 and its build-up that creates a hazard for humans
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