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一、实验改进的目的“酸的化学性质”是人教版九年级化学下册第十单元课题一中的教学内容。在本章节的学习中,教师为了探究碱性氧化物(如部分金属氧化物)能与酸发生反应,会补充拓展氧化铜与稀硫酸的反应。而常温下氧化铜与稀硫酸的反应速率较慢,不能提高教学效率。传统的做法是让氧化铜粉末与稀硫酸利用加热加速反应。这样虽然能让学生更快地观察到实验
First, the purpose of experimental improvement “acid chemistry ” is the teaching content of the tenth unit of the tenth volume of the ninth grade chemistry book of the PEP. In this section, teachers will explore ways to extend the reaction of copper oxide with dilute sulfuric acid in order to explore how basic oxides (such as partial metal oxides) react with acids. The room temperature copper oxide and dilute sulfuric acid reaction rate is slow, can not improve teaching efficiency. The traditional approach is to use copper oxide powder and dilute sulfuric acid to accelerate the reaction with heat. Although this allows students to observe the experiment faster