4)Final equation with explanation describing how (H+) interferes (shifts equilibrium) for making shells 5) A solution that describes one way to shift equilibrium in 4) so that organisms can again build their shells

Consider the following equilibrium: BaSO4 (s) Ba2+ (aq) + SO42 (aq); AH > 0 In which direction will the equilibrium shift (choose from: left, right, no effect) if: We add H2SO4, the equilibrium will shift to shift to equilibrium will shift to A We add heat, the equilibrium will A/ We add He(g), the Α

Suppose a reaction has a standard enthalpy change of -100 kJ. a) What temperature change would be needed to double the value of the equilibrium constant for this reaction? b) What temperature change would be needed to increase the value of the equilibrium constant for this reaction by a fact of ten? c) If the enthalpy change were only -20 kJ, what temperature change would be needed to double the value of the equilibrium constant for this reaction?

Use Le Châtelier’s Principle to explain the effect each of the following changes will have upon the system—will the equilibrium shift toward the product or reactant side? Why? N2(g) + 3 H2(g)  ↔ 2 NH3(g) + heat a. If more hydrogen is added to the system the equilibrium will shift to the..... (pick one and explain)i. Right ii. Left iii. Remains unchanged b. If ammonia is removed from the system the equilibrium will shift to the..... (pick one and explain)i. Right ii. Left iii. Remains unchanged c. If nitrogen is removed from the system the equilibrium will shift to the..... (pick one and explain)

QUESTION 19 Consider the following information, choose all of the statements that are false. k] H2(g) + S(s) = H,S(g) K=7.8x105 AH= -20.17 mol O Adding a catalyst will cause the concentration of H25 to increase. O Decreasing the volume of the reaction vessel will cause the concentration of H2 to increase. O Products are predominant. OIncreasing the reaction temperature will cause the concentration of H2 to increase. O Adding more H25 will cause the concentration of H2 to decrease. O Removing S will cause the concentration of H2 to increase.

Question 1 State the direction that the equilibrium will shift in response to each stress applied to this chemical reaction that produces carbonic acid: .CO2 (g) + H2O (I) = H2CO3 (aq) Additional water is added. [Choose ] Some carbonic acid is removed. [ Choose ] The pressure of the container is decreased. [ Choose ] The temperature is increased. [Choose ] > >

Chapter 1 question 1