We can say that a nonpolar molecule you can have as a result of two different conditions.
所以你可以说非极性分子,有两种构成方式。
Nonpolar molecules result from either, it's one or the other.
一个非极性分子,不是这一种就是那一种。
Here is the question. Is methane a polar molecule or a nonpolar molecule? Let's look carefully.
问题是,甲烷是一个极性分子还是非极性分子,我们仔细看看。
Symmetric disposition of polar bonds still results in a nonpolar molecule.
空间对称的极性键分布,还是会导致整个分子为非极性分子。
If we can do that, we'll end up with a symmetric nonpolar molecule.
如果我们能这样做,我们就能得到那些对称非极性的分子。
And yet, the molecule is symmetric and nonpolar.
所以这个分子是对称非极性的。
What makes something polar versus nonpolar?
是什么让一个分子呈极性或者非极性?
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