不同的酶会协助不同的化学反应。
接下来的化学反应非常复杂，会持续很多年，混凝土只会变得越来越硬。
The chemical reaction that follows is very complex and continues for many years, and the concrete just keeps getting harder.
我当然不明白它们是如何与化学反应联系起来的，更不用说我感兴趣的其他学科了。
I certainly didn't understand how they even connected really to chemical reactions, much less other disciplines that I was interested in.
如果你想想我们周围的许多颜色、形状和质地，它们都是具体而独特的化学反应的产物。
If you think of the many colours, shapes and textures around us, they are all the product of specific and unique chemical reactions.
这些细菌实际上就是硫化氢和二氧化碳的结合体，而这种化学反应产生的有机物质是更大的有机体的食物。
These bacteria actually combine the hydrogen sulfide with the carbon dioxide and this chemical reaction is what produces organic material which is the food for larger organisms.
表观遗传过程是一种化学反应，与天生和后天培养都没有关系，但它代表了研究人员所说的“第三种成分”。
Epigenetic processes are chemical reactions tied to neither nature nor nurture but representing what researchers have called a "third component".
光化学反应使光变为电脉冲。
The photochemical reactions transform the light into electrical impulses.
钙能与水产生化学反应但不如钠以及钾那么剧烈。
Calcium reacts with water but less violently than sodium and potassium do.
通过化学反应，可以产生碳氢化合物。
化学激光器的特点是以释能化学反应提供能源。
Chemical laser is characteristically energized by an exoergic chemical reaction.
尽管政府不应该试图引导这种化学反应，它应该为其创造条件。
Though the government should not seek to direct the chemistry, it should create the conditions for it.
现在在这个结构下，我说过讨论这些价电子可能会让我们对化学反应有更深的理解。
Now with this framework, I said that talking about these valence electrons might give us some insight into chemical reactivity.
你看，原来某些微生物是化学合成的——它们不需要阳光，因为它们从化学反应中获取能量。
You see, it turns out that certain microorganisms are chemosynthetic—they don't need sunlight because they take their energy from chemical reactions.
在活细胞里催化化学反应的蛋白质。
A protein that catalyzes chemical reactions in living cells.
但是许多复杂的化学反应也同时发生。
But while this is happening, many complicated chemical reactions are taking place.
第三种技术发生了化学反应。
一些电池是基于一些可逆的化学反应。
Some batteries are based on an underlying chemical reaction that can be reversed.
通过化学反应使化学品无效。
那么大量的化学反应，我们就得关注。
So there's an enormous amount of chemistry and processes we're concerned with.
我们画出简单化学反应的，能级示意图。
So let's just sketch out what the levels are going to look like for simple chemical events.
它们还可以帮助科学家在单分子水平研究化学反应。
They could also allow scientists to study chemical reactions at the single-molecule level.
物质在它们原始位置时的化学反应是最大的，对吗？
That chemical reaction is greater when the substances are in their original positions, right?
这个分解反应需要光，是一个光化学反应。
Turns out that light is needed, it's a photochemical reaction.
另一些物质看起来是经过极冷表面的化学反应生成的。
Other minerals look like what is produced by chemical reactions that occur on very cold surfaces.
好吧，我们对化学反应的极限有那些了解呢？
Well, what do we know about extremes of chemical reactivity?
它决定了原子的排列以及化学反应如何发生。
It determines the atomic lines and how chemistry takes place.
化学反应并不只是在学校里的实验室里发生。
火山的热量将驱动化学反应，同时也能引起大量的蒸发。
Volcanic heat would drive the chemical reactions, as well as causing lots of evaporation.
然后看我们如何描述基本的化学反应，和过程。
And just see how we can describe elementary chemical reaction rates and processes.
实际上，铬黄的化学反应在光泽面和颜料面之间也会发生。
In fact, the chrome yellow chemical reaction occurred between the layers of varnish and paint.
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