When 1 g of a cube of manganese (iv) oxide was added to 100 cm3 of hydrogen peroxide, water and oxygen were produced. manganese oxide was not used up in the reaction. based on this information, which of the following is likely to increase the rate formation of the products? using 2 grams of manganese oxide using 50 cm3 of hydrogen peroxide replacing the cube of manganese (iv) oxide with its powder removing manganese (iv) oxide from the reaction mixture