Final answer:
In the reaction catalyzed by bromine, you would find water (H₂O) and oxygen gas (O₂) as the end products, not a new bromine compound.
Step-by-step explanation:
When the reaction 2H₂O₂ → 2H₂O + O₂ is catalyzed by bromine (Br₂), you would not expect to find any new bromine-containing compounds because bromine acts only as a catalyst and is not consumed in the reaction. It is important to note that a catalyst does not appear in the chemical equation of a reaction because it is not consumed. Therefore, the substances you would expect to find in the reaction container at the end of this reaction are water (H₂O) and oxygen gas (O₂), as these are the products of the decomposition of hydrogen peroxide (H₂O₂).
The compound you would expect to find in the reaction container at the end of the reaction is d. BrO2.
In the given reaction, 2H2O2 -> 2H2O + O2, bromine (Br2) acts as a catalyst. A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process. It initiates the reaction but does not participate in it. Therefore, at the end of the reaction, the only compound present in the reaction container would be the products, which are water (H2O) and oxygen (O2).