28. Hydrogen peroxide commonly known as agua oxigenada, decomposes into water and oxygen gas. Adding Magnesium oxide catalyzes this reaction. Two set-ups of the decomposition of the same amounts of Hydrogen are observed. The first set-up finishes after 10 minutes while the second set up finishes after 5 minutes. Which of the two set-ups is catalyzed? A. Set-up 1 B. Set-up 2 C. Set-up 1 and 2 D. This problem lack important details.

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Chapter1: Chemical Foundations
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ain Suisea
28. Hydrogen peroxide commonly known as agua oxigenada, decomposes into water
and oxygen gas. Adding Magnesium oxide catalyzes this reaction. Two set-ups of
the decomposition of the same amounts of Hydrogen are observed. The first
set-up finishes after 10 minutes while the second set up finishes after 5 minutes.
Which of the two set-ups is catalyzed?
A. Set-up 1
B. Set-up 2
C. Set-up 1 and 2
D. This problem lack important details.
29. Refer to the figure below. In which set-up will the reaction occur faster?
SH up X
Set up O
C. They have the same speed.
A. Set-up Q
B. Set-up X
D. The reactions cannot be determined.
30. Which pertains to the minimum amount of energy required to initiate a chemical
reaction?
C. Chemical Reaction
A. Activation rate
B. Activation energy
D. Concentration
31. Which of the following statements about rates of reaction is TRUE?
A. A sugar cube will dissolve faster in water than a powdered sugar.
B. Coffee powder will dissolve faster in hot water than in cold water.
C. Painting iron fences decreases the surface area exposed to the air, thus delays
rusting.
D. One gram of powdered juice dissolved in 100 ml of water will have a more
intense taste than a 5 gram of powdered juice dissolved in the same amount
of water.
2022.04.01 21:49
Transcribed Image Text:ain Suisea 28. Hydrogen peroxide commonly known as agua oxigenada, decomposes into water and oxygen gas. Adding Magnesium oxide catalyzes this reaction. Two set-ups of the decomposition of the same amounts of Hydrogen are observed. The first set-up finishes after 10 minutes while the second set up finishes after 5 minutes. Which of the two set-ups is catalyzed? A. Set-up 1 B. Set-up 2 C. Set-up 1 and 2 D. This problem lack important details. 29. Refer to the figure below. In which set-up will the reaction occur faster? SH up X Set up O C. They have the same speed. A. Set-up Q B. Set-up X D. The reactions cannot be determined. 30. Which pertains to the minimum amount of energy required to initiate a chemical reaction? C. Chemical Reaction A. Activation rate B. Activation energy D. Concentration 31. Which of the following statements about rates of reaction is TRUE? A. A sugar cube will dissolve faster in water than a powdered sugar. B. Coffee powder will dissolve faster in hot water than in cold water. C. Painting iron fences decreases the surface area exposed to the air, thus delays rusting. D. One gram of powdered juice dissolved in 100 ml of water will have a more intense taste than a 5 gram of powdered juice dissolved in the same amount of water. 2022.04.01 21:49
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