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Identifying Reaction Intermediate and Catalyst

CHEM-@JZMBH

Consider the following reaction mechanism:

$${H}_{2}{O}_{2} (aq) + {I}^{-} (aq) \xrightarrow [ ] {{ k }_{ 1 }} {H}_{2}O (l) + I{O}^{-} (aq)$$

$${H}_{2}{O}_{2} (aq) + I{O}^{-} (aq) \xrightarrow [ ] {{ k }_{ 2 }} {H}_{2}O (l) + {O}_{2} (g) + {I}^{-} (aq)$$

Identify the reaction intermediate and the catalyst.

Reaction intermediate:

.

Catalyst:

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