现行高级中学课本化学 (必修 )第一册15 0面实验 6 5如图 1所示。用这两种装置演示铜片分别与浓硝酸、稀硝酸的反应 ,有以下不足之处 :1.反应中生成的ＮＯ2 ,ＮＯ等有毒气体完全逸散在空气中造成对人体危害 ,对环境污染 ;2 .不利于控制反应 ,只能是在反应物之一(铜片或硝酸 ) The current senior middle school textbook chemistry (required) first volume 15 0 surface experiment 6 5 is shown in Figure 1. The use of these two devices to demonstrate the reaction of copper with concentrated nitric acid and dilute nitric acid, respectively, has the following deficiencies: 1. The toxic gases such as NO2 and NO generated in the reaction are completely dissipated in the air and cause harm to the human body and environmental pollution; 2. Not conducive to controlling the reaction, can only be one of the reactants (copper or nitric acid)