Select the statement that best describes what happens when the concentration of PbO is decreased: PbO(s)+NaCl(aq)+H2O(l)↔Pb(OH)Cl(s)+NaOH(aq) a. The reaction will shift to the left thereby increasing the concentration of the reactants to restore equilibrium. b. The reaction will shift to the left thereby increasing the concentration of the products to restore equilibrium. c. The reaction will shift to the right thereby increasing the concentration of the reactants to restore equilibrium. d. The reaction will shift to the right thereby increasing the concentration of the products to restore equilibrium. e. No Change.

65. Consider this reaction at equilibrium: 2 KCIO;(s) =2 KCI(s) + 3 O2(8) Predict whether the reaction will shift left, shift right, or remain unchanged after each disturbance. a. Oz is removed from the reaction mixture. b. KCl is added to the reaction mixture. c. KCIO, is added to the reaction mixture. d. O2 is added to the reaction mixture.

Calcium is somewhat insoluble, so the solid commonly forms an equilibrium with its dissolved ions:                                                      CaSO4(s) ⇔  Ca2+(aq) + SO42-(aq) All of the following will affect the position of equilibrium, changing the numbers of dissolved ions in solution, exceptA. adding Ca(NO3)2 B. adding Na2SO4 C. adding CaSO4(s) D. adding water

A. Using the Le Chatelier's principle, predict the shift in the direction of the equilibrium position and changes that will be observed (e.g. color) in each of the following equilibria when the indicated condition is applied.| 1. Ifheat is added to a phase change equation at equilibrium from solid to liquid, which way will the reaction proceed? 2. In this reaction: H2Om = H2O how could conditions be manipulated to create more H2Qa? 3. Which side is heat on in this reaction (photosynthesis): 6COX + 6H2O@= C¢H12O620) + 60z) 4. Heat + Co+Ca+ 4 Claq) = COC4 ²- caq) when the equilibrium mixture is cooled. (exothermic) pink colorless blue 5. Fet) 6SCNa) - Fe(SCN)6 *w when Fe³+ is added to the equilibrium mixture. brown colorless red