A:Zn和H2SO4的总能量大于ZnSO4和H2的总能量
B:反应过程中能量关系可用上图表示
C:若将该反应设计成原电池,则Zn为负极
D:若将该反应设计成原电池,当有32.5g锌溶解时正极放出11.2 L气体
James has just arrived, but I didn't know he until yesterday.
—Yes,it's _______ September 3rd _______ each year.It tells the world that Chinese people love peace and hate wars.Chinese people will never forget the history.
线段AB是由线段CD平移得到,点A(﹣2,1)的对应点为C(1,1),则点B(3,2)的对应点D的坐标是____.