Abstract The role of the salt bridge is well known. If “the salt bridge of the copper-zinc two-liquid primary battery is replaced by a copper piece, is there any current in the circuit? What are the reactions of the copper piece in the two liquids?”, based on these questions, a series of experiments have been developed to guide students to make assumptions about the reactions of each electrode using various evidences such as precipitate formation, color change of the solution, changes of electrode mass, pH of the solution, and directions of deflection of the galvanometer pointers. During the research, students also need to design novel experiments to gradually find the evidences, based on the evidences of macroscopic experimental phenomena, this paper carries out problem-driven learning to cultivate students’ core literacy of scientific inquiry and innovation consciousness.
WEN Jie-Cheng, HUANG Ping, SUN Jin-Feng, LI Bing-Ru, RAN Ming. Electrochemical Comprehensive Experiment Inquiry Based on Evidence Reasoning[J]. Chinese Journal of Chemical Education, 2021, 42(7): 90-94.
