So the mechanism of our conversion will require more than one step. Now let's look at the following complex reaction. This is the overall reaction in which five molecules, two of these guys, one of this guy and two of these guys react to produce four moles of this guy and 1 mol of this guy. So let's break this overall net reaction into its individual steps. So step one is the following 1 mol of hydrogen peroxide reacts with 1 mol of this guy in a slow step producing 1 mol of hydroxide and 1 mol of hoi. Now this slow step will be important in determining the rate law and we'll see in a second why.