摘要:2.X.Y.Z三种金属,根据方程式:Z+YSO4Y+ZSO4;X+YSO4XSO4+Y; Z+H2SO4ZSO4+H2;X+H2SO4不反应.可知三种金属的活动性顺序············· [ ] A.Z.>X>Y B.Z>Y>X C.X>Y>Z D.Y>X>Z

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