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化学式を全部書いて知っているとか4種類の物質の品質は1グラムの双酸素水2H2O2=2H2O+O2↑68-----------------321-----------------生成32*1/68グラム0.47グラム過マンガン酸カリウム2KMnO4=加熱=K2MnO4+MnO2+O2↑316-------------...
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