While gina conducts a calorimetry investigation, she observes the temperature change of a reaction in a sealed, insulated calorimeter. would you consider the calorimeter an example of a closed, open, or isolated system? explain your answer in complete sentences.

Ibelieve the answer is weathering,hope my answer has you : ) 

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -