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化学是一门比较年青的科学。虽然对古代化学知识底起源无从考察,可是人类在很久以前就已实现了某些化学变化籍以获得有用的、合乎需要的物质,并逐渐地从化学领域中发掘了不少实际的知识,但是,所有这些知识都只是偶然的、零碎的。化学是从大约200年前才发展起来并作为一个担负起研究物质构造及认识化学变化本质的任务的科学。在这短短的时期内它获得了巨大的成就并成为与生活、国民经济紧密联系的,近代自然科学中的一种精确的科学之一。
Chemistry is a relatively young science. Although there is no study of the origins of ancient chemical knowledge, humankind has long since realized certain chemical changes to obtain useful and desirable substances, and gradually gained a lot of practical knowledge from the field of chemistry. However, All this knowledge is only accidental, fragmentary. Chemistry was developed about 200 years ago and used as a science to undertake the task of researching the nature of matter and understanding the nature of chemical changes. In this short period of time, it has made great achievements and become one of the precise sciences in modern natural sciences that is closely linked with life and the national economy.