== 實驗 == 活性已知的是(課本寫的) C > Si Al > Si 已知碳的活性可能界於錳和鋅之間 Al>Zr>Ti>Mn>V>Nb>Zn 但它會排在哪裡?那矽呢? 實驗是 CO2 + 2 Mn → 2 MnO + C 3 CO2 + 2Ti → 2 Ti2O3 + C CO2 + 2V → 2 VO + C 換成矽以同樣方式做 觀察置換反應有無發生 即可判斷活性
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