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汉语拼音：huà xué

研究物质的组成、结构、性质以及变化规律的科学。可分为无机化学、有机化学、物理化学、分析化学、高分子化学、生物化学、放射化学、地球化学等分支学科。

1. 研究物质的组成、结构、性质和变化规律的科学，是自然科学中的基础学科。

2. 指赛璐珞。如：这把梳子是化学的。

• Distillation usually forms part of a larger chemical process, and is thus referred to as a unit operation.

  蒸馏通常构成一个大的化学工艺的一部分，因而，是一个单元过程。

• Stoichiometry: Determination of the proportions (by weight or number of molecules) in which elements or compounds react with one another.

  化学计量学：确定化学元素或化合物彼此反应的比例关系（用重量或分子数表示）。

• How much better to have been born with a passion for tax law, chemistry or computer programming.

  要是生下来就喜欢税法、化学或电脑编程，那该有多好啊。

• Food chemists have investigated the grain to see if it really provides the benefits claimed.

  食品化学家仔细研究这种谷物，看它是否真的具有所声称的益处。

• chemical property of the element made it a good catalyst.

  这种元素的特殊化学特性使其成为一种好的催化剂。

• For all this, cannot satisfy me with the medical chemistry experiment limited contact in this domain intellectual curiosity.

  尽管如此，与医药化学实验有限的接触并不能满足我在这个领域的求知欲。

• Meanwhile, it makes a try to work out a treatment of domestic reclaimed water in power plant by the means of studying on it.

  同时研究电磁-化学综合法对城市中水的处理，为城市中水在电厂的应用寻找解决办法。

• The researchers will now follow the children of these women to see what effects, if any, the chemicals had on their development.

  研究者们现在将对这些妇女的孩子们进行追踪研究，以确定这些化学物对他们的发育是否有任何影响。

• The chemistry teacher dipped his finger into the mixture and took it out of it.

  化学老师把一个指头伸进混合液里，立刻又拿了出来。