The reaction between hydrogen peroxide H2O2 and iodide ions I- is a classic example of a reaction with a known rate law expression. The overall reaction is:H2O2 + 2I- + 2H+ I2 + 2H2OThe rate law expression for this reaction is:Rate = k[H2O2][I-]where Rate is the rate of the reaction, k is the rate constant, and [H2O2] and [I-] are the concentrations of hydrogen peroxide and iodide ions, respectively.