AP Chemistry Jeopardy

1. AP Chemistry Jeopardy 2000

2. AP CHEM JEOPARDY Structure of Matter States of Matter Physical Chemistry Chemical Bonding Chemical Reactions $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $400 $400 $400 $400 $400 $800 $800 $800 $800 $800 $1000 $1000 $1000 $1000 $1000 $1500 $1500 $1500 $1500 $1500 $2000 $2000 $2000 $2000 $2000

3. Chemical Bonding $100B DAILY DOUBLE

4. Chem Bond $100 Q - Which atom has a larger atomic radius? A) Ar C) Cl B) Na D) Li

5. Chem Bond $200 Q - How Many Sigma and Pi bond does N2 contain? A) one sigma, four pi B) two sigma, two pi C) three sigma D) three pi E) one sigma, two pi

6. Chem Bond $400 What are the the three atoms that bond to hydrogen in hydrogen bonding?

7. Nitrogen Oxygen Fluorine

8. Chem Bond $800 What are the two ways for a molecule to have a bent geometry?

9. A tetrahedral arrangement with two unshared electron pairs (~109.5°) A planar triangle geometry with one unshared electron pair (~120°)

10. Chem Bond $1000 What are the four types of Unit Cells possible for crystal structures??

11. Simple Cubic 2r = s Face centered 4r = 2 (sqr. Root r) Body centered 4r = s (cube root r) Hexagonal

12. Chem Bond $1500 Q - Which is NOT linear? a) CO2 b) H2O c) BeF2 d) N2

13. A

14. Chem Bond $2000 Why is the P-Cl bond in PCl5 a stronger bond than the C-O in carbon monoxide? A) Increased Dipole - Dipole Forces B) Hydrogen Bonding C) Increased London Dispersion Forces

15. States of Matter $100 Which of the following is not a gas at room temperature? A) O2 B) Ar C) F2 D) Br2

16. Bromine is a red liquid

17. States of Matter $200 Under what conditions would a substance sublimate at room conditions (25 °C and 1 atm)? A) the critical temperature must be below the triple point B) the slope of the fusion line should be negative C) the triple point must be at a pressure greater than 1 atm and 25°C D) the solid phase must be more dense than the liquid phase

18. States of Matter $400 What would happen to the pressure of a gas if the temperature is tripled, the volume is doubled, and the number of gas molecules is quadrupled ? . . . .

19. A) T x (1/3)(1/2)(1/4) B) T x (3/1)(2/1)(4/1) C) T x (3/1)(1/2)(4/1) D) T x (3/1)(1/2)(1/4)

20. Temp. is tripled P = kT Volume is doubled P=k(1/V) Moles is quad. P = kn

21. States of Matter $800 Is the slope for the solid/ liquid line in the phase diagram of water positive, negative, or can be either?

22. States of Matter $1000 The kinetic molecular theory predicts that at a given temperature...

23. A) All gases have the same KE B) All gas molecules have the same velocity C) Only real gas molecules collide with each other D) On average, heavier molecules move more slowly E) Elastic collisions result in the loss of energy.

24. States of Matter $1500 All of the following physical properties change as solute is added to the solution. Which is NOT a colligative property? A) Boiling Point D) Surface Tension B) Vapor Pressure E) Melting Point C) Osmotic Pressure

25. States of Matter $2000 Which of the following is most likely to be soluble in hexane? A) KCl D) H2O B) C2H5OH E) C6H6 C) HC2H3O2

26. Physical Chemistry $100 What is the free energy of a system at equilibrium? . . .

27. ∆ G = 0 @ equilibrium < 0 if spontaneous > 0 if non-spontaneous

28. Physical Chemistry $200 When ∆H is positive and ∆S is negative, will temperature changes have an effect on the spontaneity of a reaction? YES NO

29. Physical Chemistry $400 The rate of reaction will be large if: A) ∆G° is a large (-) number B) ∆S° is a large (-) number C) ∆H° is a large (-) number D) Keq is a large (+) number E) None of the above

30. Physical Chemistry $800 The Law of Dulong and Petit says that the molar specific heat of solid elements is approximately 25 J/mol•K. This suggests that. . .

31. a) The heat absorbed depends only on the number of atoms b) the heat absorbed depends on the volume change with temperature c) the heat absorbed can be calculated from the 1st Law of Thermodynamics d) this law is an oddity since it does not apply to elements that are liquids / gases

32. Physical Chemistry $1000 An inorganic catalyst doesn’t... A) Ensure proper geometry B) Weaken existing bonds C) Lose effectiveness when heated D) Decrease the activation energy of a reaction

33. Catalysts lower the activation energy of a reaction thus increasing the rate by ensuring proper geometry and weakening existing bonds in the molecule. Only ORGANIC catalysts are effected by a temperature change.

34. Physical Chemistry $1500 What equation would you use to solve: How much heat does it take to raise 10 grams of water by 10°C? . . .

35. q = m • c • ∆T

36. Physical Chemistry $2000 What is the equation is used to find how temperature changes affect rates of reaction?

37. ln k2 = Ea (T2 - T1) k1 R T2•T1

38. Chemical Reactions $100 Which of the following would produce odor if heated? A) NH3 D) PbI2 B) Na+(aq) E) A and C C) KI

39. Chemical Reactions $200 One mole of electrons is how many coulombs?

40. 96,485 C

41. Chemical Reactions $400 A molecule of NaHSO4 is . . . a) Acidic b) Basic c) Neutral

42. Na+ is neutral because it is the conjugate acid of a strong base. HSO4- is acidic because it can further produce H+ ions in solution (but it also has amphoteric properties).

43. Chemical Reactions $800 Which of the following compounds includes an element that has the same oxidation # as the chlorine in sodium chlorate, NaClO3? A) K3Fe(CN)6 D) (NH4) 2SO4 B) KMnO4 E) KClO4 C) Al(NO3)3

44. Chemical Reactions $1000 DAILY DOUBLE

45. Which of the following statements is FALSE?

46. A) reduction involves a gain of e- B) batteries are galvanic cells C) a spontaneous reaction always has a (+) E°cell D) electrolysis reactions always produce a gas at at least one electrode E) Galvanic cells can be used to determine equilibrium constants

47. Chemical Reactions $1500 What will be the products of the following equation? FeCl2 + HCl + KMnO4 --> ???

48. FeCl2 + HCl + KMnO4 --> FeCl3 + MnCl2 + H2O + KCl Ox: Fe2+ --> Fe3+ + e- Red: MnO4 - + H+ --> Mn2+ + H2O (K+ and Cl- are spectator ions)

49. Chemical Reactions $2000 Predict the net ionic equation for the following reaction and tell what form the reactants will be present . . . The electrolysis of KI in water

50. Ox: 2 I- --> I2 + 2e- Red: 2 H2O + 2 e- --> H2 + 2 OH- 2 H2O + 2 I- --> H2 + 2 OH- + I2 Electrolysis of KI in water. (H2O has a E°red closer to zero than K+)