Chemistry, 31.05.2020 01:00 danielamadrid79

When a cube of manganese oxide was added to a solution of hydrogen peroxide, water and oxygen were produced. Manganese oxide was not used up in the reaction. Which of the following is likely to decrease the rate of the reaction?

A. Using a larger amount of solution
B. Increasing the mass of the cube
C. Chilling the hydrogen peroxide solution
D. Smashing the cube into pieces

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