【摘要】 针对教材中铜与浓稀硝酸演示实验存在反应过于剧烈无法控制、出现倒吸现象、反应缓慢及有毒气体外逸等不足，运用主体附加组合法，设计带支管和玻璃漏槽的分液漏斗、带支管的硼硅酸盐圆底烧瓶等仪器组合成新的演示装置，并达到仪器简约化、操作简捷化、现象可视化、过程环保化、体验艺术化等效果，有效达成“以实验创新促进素养发展”的实验教学导向。更多还原

【Abstract】 In view of the shortcomings of the demonstration experiment of copper with concentrated and dilute nitric acid in the textbook, such as the reaction is too intense and uncontrollable, the phenomenon of back absorption, the slow reaction and the escape of toxic gases, the main body additional combination method is used to design the separation funnel with branch pipes and glass leakage grooves, the borosilicate round bottom flask with branch pipes and other instruments to combine into a new demonstration device, and achieve effects such as the simplification of instruments, the simplification of operation, the visualization of phenomena, the environmental protection of the process and artistic experience, and effectively achieve the experimental teaching guidance of “promoting the development of literacy through experimental innovation”.更多还原