阿Q吧 > 初中化学中制氧气有哪三个化学方程式？

初中化学中制氧气有哪三个化学方程式？

2025-04-02 21:49:51
推荐回答（2个）
回答1：

一、2KMnO4==(加热)K2MnO4+MnO2+O2↑

二、2H2O==（通电）2H2+O2↑

三、2KClO3==（加热）2KCl+3O2↑

化学方程式，也称为化学反应方程式，是用化学式表示化学反应的式子。化学方程式反映的是客观事实。因此书写化学方程式要遵守两个原则：一是必须以客观事实为基础；二是要遵守质量守恒定律。

回答2：

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