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它可以控制液體滴落速度,二氧化錳是催化劑,不用添加,加入的都是過氧化氫,而實驗用的過氧化氫濃度都不算太高,很快就會分解完,再控制滴落速度,自然可以控制速率
2KMnO4+5 SO2+2 H2O == 2MnSO4+ K2SO4+2 H2SO4
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