甲烷分子式CH4。最简单的有机化合物。甲烷是没有颜色、没有气味的气体，沸点-161.4℃，密度小于空气，它是极难溶于水的可燃性气体。甲烷和空气成适当比例的混合物，遇火花会发生爆炸。化学性质相当稳定，跟强酸、强碱或强氧化剂（如KMnO4）等一般不起反应。在适当条件下会发生氧化、热解及取代等反应。
甲烷分子
双语例句原声例句
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甲烷水合物主要存在于地下以及海底，由甲烷分子被锁在固态水晶体格中所组成。
Found underground and on the sea floor, methane hydrate consists of natural gas molecules trapped within a lattice of frozen water molecules.
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可以预期偶氮甲烷分子具有和丙酮(CH3) 2 CO分子相似的丫形结构。
One might expect azomethane to have a Y structure similar to that of acetone (CH3) 2co.
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天然气的主要成分是甲烷，它含有一个碳原子和四个氢原子，这项转化的关键是把一个甲烷分子变大。
The challenge is to take a molecule of methane, the main component of natural gas consisting of one carbon atom and four hydrogen atoms, and turn it into something bigger.
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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。
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We only have the one bond so the actual HF molecule is polar, it has a net dipole.
但HF中只有一根键,所以分子也是极性的而甲烷中有一个网状偶极。
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And I picked looking at methane so we could see if there are other factors that we're not considering, that we need to maybe tweak our model a little bit, and I think we'll find that we do if we take a look at a polyatomic molecule, methane, CH4 so c h 4.
我选择甲烷这个例子，我们可以看到,如果有一些我们没有考虑到的因素，我们需要修改一下我们的模型，我们看一看,甲烷CH4这个多原子分子，就会知道这一点，甲烷。
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