运用推理、归纳、类比、对比的方法得出下列结论，其中合理的是：

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A．铝的金属活动性比铁强，则铝制品比铁制品更容易锈蚀

B．水和过氧化氢的组成元素相同，则两者的化学性质相同

C．Na⁺、Mg²⁺、Cl^-的最外层电子数均为8，由此得出离子的最外层电子数均为8

D．同温下分解氯酸钾，加催化剂的反应速率快，说明催化剂可以改变反应速率

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相关知识点

化学性质与物理性质的差别及应用

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