“化学”一词,从字面解释就是“变化的科学”。化学如同物理一样皆为自然科学的基础科学,也是一门以实验为基础的自然科学。它是研究物质的组成、结构、性质、变化及其合成规律的科学。二十世纪的化学是一门建立在实验基础上的科学,进入20世纪以后,化学在认识物质的组成、结构、合成和测试等方面都有了长足的发展,而且在理论方面取得了许多重要成果。高中化学新课程分为2个必修模块和6个选修模 The word “chemistry” is interpreted literally as “the science of change.” Chemistry, like physics, is the basic science of natural sciences, and it is also a natural science based on experiments. It is the science that studies the composition, structure, properties, changes, and synthesis laws of substances. In the 20th century, chemistry in the 20th century was based on experiments. After entering the 20th century, chemistry has made great progress in understanding the composition, structure, synthesis and testing of substances, and it has achieved a lot of importance in theory. Achievements. High school chemistry curriculum is divided into 2 compulsory modules and 6 elective modules