The ligand substitution reaction between Co NH3 5Cl2 and AgNO3 can be represented as follows:Co NH3 5Cl2 + AgNO3 Co NH3 5Cl NO3 + AgClMechanism:The mechanism for this reaction is a two-step associative ligand substitution process. In the first step, the nitrate ion NO3- from AgNO3 forms a weak bond with the Co NH3 5Cl2 complex, creating a transition state with a coordination number of 7. In the second step, the chloride ion Cl- is displaced from the complex, resulting in the formation of Co NH3 5Cl NO3 and AgCl.Step 1: Co NH3 5Cl2 + NO3- [Co NH3 5Cl2 NO3 ] transition state Step 2: [Co NH3 5Cl2 NO3 ] Co NH3 5Cl NO3 + Cl-Driving force:The driving force for this reaction is the formation of the insoluble AgCl precipitate. The removal of AgCl from the solution shifts the equilibrium towards the products, according to Le Chatelier's principle.Rate of reaction:The rate of the reaction can be affected by the concentrations of the reactants. According to the rate law, the rate of the reaction is directly proportional to the concentration of the reactants. In this case, the rate law can be expressed as:Rate = k[Co NH3 5Cl2][AgNO3]where k is the rate constant, and [Co NH3 5Cl2] and [AgNO3] are the concentrations of the reactants. As the concentration of either reactant increases, the rate of the reaction will also increase. Conversely, if the concentration of either reactant decreases, the rate of the reaction will decrease.