What would happen to a system at equilibrium if the temperature were changed?
A. Equilibrium would not be affected.
B. Only the reaction rate would change.
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C. The system would lose the heat.
D. The equilibrium constant would change.

When hydrogen peroxide (h2o2) is added to potassium iodide (ki) solution, the hydrogen peroxide decomposes into water (h2o) and oxygen (o2). the chemical equation for the decomposition reaction is: 2h2o2—> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.