SPM Chemistry 2019 Q42

Question

Table 3 shos the volume of oxygen gas collected when hydrogen peroxide solution decomposed in the presence of Manganese (IV) oxide.
Jadual 3 menunjukkan isi padu gas oksigen yang dikumpulkan apabila larutan hidrogen peroksida terurai dengan kehadiran mangan(IV) oksida. 

What is the average rate of reaction in the third minute?
Berapakah kadar tindak balas purata dalam minit ketiga? 

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    2020-12-28T12:34:59+08:00

    The answer is C. Solution is attached.

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