• And we give different names, depending on what kind of electrons we're dealing with, so, for example, with h c l here, we can talk about having bonded versus lone pair electrons.

    我们还起了不同的名字,给我们要处理的不同类型的电子,以氯化氢为例,我们来介绍一下成键电子与孤对电子。

    麻省理工公开课 - 化学原理课程节选

  • So let's take the case of acetylene where we have two carbon atoms that are going to be triple bonded to each other, each are bonded to a carbon and then to one hydrogen.

    让我们来看一看乙炔的例子,我们有两个碳原子,成三键,每个碳和一个碳一个氢相连。

    麻省理工公开课 - 化学原理课程节选

  • The writer observes that women are desirous of and emotionally bonded to the very persons who establish the conditions of their subordination.

    作者发现,女人极度渴望,在感情上紧紧依附于,把她们当成附属品的人。

    耶鲁公开课 - 旧约导论课程节选

  • Cross-linked is not the right word-- that is chemically bonded with repeat units to make large molecules so that when you have a bunch of large molecules together they have certain physical properties like the solid property of the plastic that you're sitting on.

    交联这个词不确切,应该是由化学键连接的,重复单位构成大分子,当许多分子聚合在一起后,它们就会具有某种物理特性,就像你们正坐着的,塑料一样,具有固体特性

    耶鲁公开课 - 生物医学工程探索课程节选

  • We are basically committed to each other for sex but it's very hard to make those relationships last a long time because we might not have anything in common, we might not share anything with each other, we might not trust each other, we are not particularly bonded to each other.

    我们基本上只有激情的承诺,长时间维持这种关系很困难,因为可能双方没有任何共同点,没有共享的东西,我们可能互不信任,不是特别亲近。

    耶鲁公开课 - 心理学导论课程节选

  • then what you have is a carbon in the middle with three hydrogens around it, and then it can only be bonded to one other thing.

    那么你就会有一个碳原子在中心,三个氢原子围绕着它,那么它只能再和一个原子成键。

    麻省理工公开课 - 化学原理课程节选

  • And the reason we can see that by looking at this graph is that we see that nitrogen when it's bonded is in an even lower well than we saw for hydrogen.

    原因可以通过观察这幅图发现,我们看到氮在成键之后将处于更低的势阱中,对氢而言。

    麻省理工公开课 - 化学原理课程节选

  • And then even lower down, we have our bonded hydrogen molecule.

    然后继续降低,我们就有了通过共价键结合的氢分子。

    麻省理工公开课 - 化学原理课程节选

  • So, in fact, yes, we did confirm that these covalent bond, at least in the case of hydrogen, we have confirmed by the numbers that we are at a lower energy state when we talk about the bonded atom versus the individual atom.

    因此,事实上,是的,我们证实了共价键,至少在氢这种情况下,我们通过数据证实了,成键的原子处于能量更低的状态,当其与单个的原子相对比时。

    麻省理工公开课 - 化学原理课程节选

  • So it looks a lot less messy if we just draw our Lewis structure like this for h c n, where we have h bonded to c triple bonded to n, and then a lone pair on the nitrogen there.

    这看起来整洁了不少,如果我们把氰化氢的路易斯结构画成这样的话,这样我们就有氢与碳之间的单键和碳与氮之间三键,然后还有一对孤对电子在氮这里。

    麻省理工公开课 - 化学原理课程节选

  • By terminal I mean they're only bonded to one thing.

    我所说的末端的意思是它们只能与一个原子成键。

    麻省理工公开课 - 化学原理课程节选

  • So, we're going to start with talking about bonding, and any time we have a chemical bond, basically what we're talking about is having two atoms where the arrangement of their nuclei and their electrons are such that the bonded atoms results in a lower energythan for the separate atoms.

    那么,下面我们将从成键开始讲起,无论什么时候我们有一个化学键,基本上我们所讨论的,都是如何安排两个原子的原子核的位置,与电子的位置使得成键的两个原子,最终比分开时的能量更低。

    麻省理工公开课 - 化学原理课程节选

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