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石油得到乙烯是什麼變化

發布時間: 2025-07-17 06:37:46

A. 石油煉制的過程是物理變化還是化學變化

有物理變化，也有化學變化。比如，蒸餾得汽油、煤油、柴油等是物理變化；裂化得乙烯、甲烷等是化學變化。

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