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The decomposition of hydrogen peroxide in the presence of potassium iodide is believed to occur by the following mechanism: step 1 slow: H2O2 + I^- → H2O + OI^ - step 2 fast: H2O2 + OI^- → H2O + O2 + I^- (3) Which species act as a reaction intermediate? Enter formula. If none, leave box blank: