天气预报 > 其他 > 初中三大还原剂有哪些
初中三大还原剂有哪些
更新时间: 2020-07-12 00:00:00  

氢气:是世界上已知的最轻的气体。它的密度非常小,只有空气的十四分之一。碳:一种非金属元素,位于元素周期表的第二周期,碳能在化学上自我结合而形成大量化合物,在生物上和商业上是重要的分子。一氧化碳:纯品为无色、无臭、无刺激性的气体,相对分子质量为28、01。

关键词: 初中 三大 还原剂 哪些

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