求作业答案:请从下图中选出必要的

2025-05-23 07:20:19
推荐回答(1个)
回答1:

(1)阴极:2H + +2e - =H 2 ↑ 阳极:2Cl - -2e - =Cl 2
(2)J K A B
(3)H F G D E C
(4)KI淀粉溶液变蓝,Cl 2 +2I - = I 2 +2Cl -
(5)12; 25It×10 19