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Equilibrium Jeopardy. 1. A reaction in which all the reactants form only products is: A) at equilibrium B) complete C) reversible D) buffered. 2. A very small K eq indicates: A) equilibrium is reached slowly B) products are favored C) equilibrium has been reached
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1. A reaction in which all the reactants form only products is: • A) at equilibrium • B) complete • C) reversible • D) buffered
2. A very small Keq indicates: • A) equilibrium is reached slowly • B) products are favored • C) equilibrium has been reached • D) reactants are favored
3. A very high value for Keq indicates: • A) Products are favored • B) reactants are favored • C) equilibrium is reached quickly • D) equilibrium has been reached
4. What is the symbol for solubility-product constant? • A) K • B) Kh • C) Ksp • D) Ka
5. Which of the following salts is least soluble: • A) X with Ksp = 8.4 X 10-12 • B) Y with Ksp = 1.5 X 10-16 • C) XY with Ksp = 1.1 X 10-13
6. If the temperature of the equilibrium system X +Y ↔ XY + 25kJ decreases, • A) X conc. Decreases and XY conc increases • B) X conc. Increases and XY conc decreases • C) X conc. Decreases and XY conc. Decreases • D) the concentrations of reactants and products do not change
7. If the pressure on the reaction : • N2(g) + O2(g) ↔ 2NO(g) is increased, • A) the quantity of Nitrogen gas decreases • B) the quantity of NO gas increases • C) the quantity of NO gas decreases • D) the quantities in the system do not change
8. A substance with a very low Ksp ; • A_ insoluble or sparingly soluble • B) moderately soluble • C) very soluble • D) completely miscible(soluble) in most solvents
9) An increase in temperature will shift equilibrium away from the heat unit: • A) True • B) false
10) An addition of a reactant to a system at equilibrium will : • A) have no effect on equilibrium • B) shift to the right • C) shift to the left
11. A decrease in pressure on an all gas system that is at equilibrium will: • A) have no effect on equilibrium • B) shift to the side with the most moles • C) shift to the side with the least # moles
12) The product is removed from a system at equilibrium, this will : • A) have no effect on equilibrium • B) cause a shift to the right • C) cause a shift to the left
13. which of the following has no effect on equilibrium concentrations? • A) temperature • B) pressure • C) catalyst • D) concentration
14) Which of the following always affects equilibrium concentrations? • A) temperature • B) pressure • C) catalyst • D) concentration
15) A decrease in volume is the same as: • A) concentration increase • B) concentration decrease • C) pressure increase • D) pressure decrease
16) who is given credit for determining that a system at equilibrium if subjected to stress will shift to relieve the stress. • A) Dalton • B) Mendeleev • C) Le Chatelier • D) Gay-Lussac