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1. What does Le Chatelier's principle state about chemical equilibrium? A. If a stress is applied to a system in equilibrium, then the systems adjust in order to increase the cause of the stress applied. B. If a stress is applied to a system in equilibrium, then the systems adjust in order to increase the effect of the stress applied. C. If a stress is applied to a system in equilibrium, then the systems adjust in order to reduce the cause of the stress applied. D. If a stress is applied to a system in equilibrium, then the systems adjust in order to reduce the effect of the stress applied. 2. What happens to the total pressure when the volume of the container is increased? A. decreases B. increases C. becomes zero D. remains constant 3. When the temperature is decreased, how would you describe a chemical reaction that produces heat? A. direct B. endothermic C. exothermic D. inverse 4. Which of the following sets of stress that may affect a system at chemical equilibrium? I. changes in the concentration of either products or reactants II. changes in temperature for gaseous equilibria III changes in pressure for gaseous equilibria A. I only B. II only C. II and III D. I, II, and III 5. If Qe < ke,="" to="" what="" direction="" will="" the="" chemical="" reaction="" proceed?="" a.="" backward="" b.="" forward="" c.="" center="" d.="" all="" directions="" 6.="" which="" of="" the="" following="" statements="" about="" reaction="" quotient="" (qc)="" is="" false?="" a="" the="" equation="" used="" is="" aa="" +="" bb="" c="" +="" dd="" b.="" it="" is="" used="" to="" determine="" if="" chemical="" equilibrium="" is="" attained.="" c="" if="" qr="">
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