Glycine, alanine, valine, leucine are all nonpolar assets and this is how you drop them in an exam.

甘氨酸，丙氨酸，缬氨酸，亮氨酸全都是极性，是你如何征服考试秘诀啦！

But water does not dissolve non-ionic, nonpolar substances.

但水不溶解离、极性物质。

So the methane molecule becomes nonpolar as a result of that.

所以甲烷分变得极性。

So this one's nonpolar, and, of course, this one's nonpolar.

所以个是极性，当然，个是极性。

Therefore, these simple hydrocarbons are pretty nonpolar and their electrons are distributed evenly over the molecule, which is why, you know, oil and water don't mix.

，些简单碳氢化合物是极性，它们电均匀分布在分上，是油和水不混合原。

In this video, we're going to see how we figure out whether molecules are polar or nonpolar and also how to apply that polarity to what we call intermolecular forces.

在本视频中，我们将了解如何确定分是极性还是极性，以及如何将极性应用于我们所谓分间作用力。