Write a balanced net ionic equation for the (equilibrium) formation of the tetrachloridocobaltate(ii) complex. b. based on your observations of color changes in part c, did heating the reaction mixture cause a shift in equilibrium? which direction? explain your answer based on the color changes you observed. c. is the formation of tetrachlorocobaltate(ii) complex ion exothermic or endothermic? explain your answer based on the shifts in equilibrium caused by heating and cooling the reaction mixture. d. what is the effect of an increase in temperature on the value for the equilibrium constant? (increase, decrease or no change)