“化学”一词，若单从字面解释就是“变化的学问”之意。化学是一门研究物质的性质、组成、结构、以及变化规律的基础自然科学。化学研究的对象涉及物质之间的相互关系，或物质和能量之间的关联。传统的化学常常都是关于两种物质接触、变化，即化学反应，又或者是一种物质变成另一种物质的过程。
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