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Chemistry Concepts and Questions

Explore concepts of heat, ideal gases, kinetics, equilibrium, oxidation, and reduction in chemistry. Test your knowledge with various questions and answers.

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Chemistry Concepts and Questions

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  1. Heat Ideal Gases Kinetics / Equilibrium Oxidation / Reduction $200 $200 $200 $200 $400 $400 $400 $400 $600 $600 $600 $600 $800 $800 $800 $800 $1000 $1000 $1000 $1000

  2. Ideal Gases Heat Kinetics /equilibrium Oxidation Reduction $200 $200 $200 $200 $400 $400 $400 $400 $600 $600 $600 $600 $800 $800 $800 $800 $1000 $1000 $1000 $1000

  3. Category 1 $200 • Temperature is a measure of….

  4. Category 1 $400 • What phase change occurs during sublimation?

  5. Category 1 $600 • Why is the heat of vaporization of water greater than the heat of fusion?

  6. Category 1 $800 • What amount of heat energy is absorbed when 50 g of water is heated from 10C to 20C?

  7. Category 1 $1000 • Describe section AB and BC. Include as much detail as possible.

  8. Category 1 $200-Answer • Average kinetic energy

  9. Category 1 $400-Answer • Solid to Gas

  10. Category 1 $600-Answer • The change from liquid to gas requires more energy.

  11. Category 1 $800-Answer • 2090 J

  12. Category 1 $1000-Answer • AB – Heat of fusion, MP/BP, PE inc, KE constant • BC – KE inc, PE constant, LIQUID

  13. Category 2 $200 • A gas is at 300K and 0.25 atm • How could you make this gas behave more like an ideal gas?

  14. Category 2 $400 Compare the number of molecules in two 1.5L samples of gas at STP. Daily Double

  15. Category 2 $600 • A closed 1 L system contains H2 gas. How will an increase in temperature effect the pressure in the container.

  16. Category 2 $800 • Compare the entropy of H2O(g) to H2O(s)

  17. Category 2 $1000 • Describe an ideal gas according to the Kinetic Molecular Theory. • Your answer must include 4 pieces of information.

  18. Category 2 $200-Answer • Decrease temperature, increase pressure

  19. Category 2 $400-Answer • The number of molecules are the same in both gases.

  20. Category 2 $600-Answer • The pressure will increase.

  21. Category 2 $800-Answer • The entropy of the gas is higher because gases are more disordered.

  22. Category 2 $1000-Answer • Particles have random motion • No attraction between particles. • Particles are small compared to the space between them. • Particles will collide and transfer energy, but overall, energy is conserved.

  23. Category 3 $200 • Describe the energy and entropy trends that exist in nature.

  24. Category 3 $400 • What 2 conditions describe systems that have reached equilibrium?

  25. Category 3 $600 • How does the addition of a catalyst impact the activation energy and rate of reaction?

  26. Category 3 $800 • What conditions must be met for an effective collision between particles to occur?

  27. Category 3 $1000 • Label A and B and indicate whether this reaction is endothermic or exothermic?

  28. Category 3 $200-Answer • Systems tend towards high entropy and love energy.

  29. Category 3 $400-Answer • The system must be closed. • There are equal amounts of reactants and products.

  30. Category 3 $600-Answer • Catalysts decrease activation energy and increase the rate of reaction.

  31. Category 3 $800-Answer • Proper energy and orientation.

  32. Category 3 $1000-Answer • A – activation energy of forward reaction. • B – Heat of reaction • Endothermic

  33. Category 4 $200 • Define oxidation.

  34. Category 4 $400 • What is reduction?

  35. Category 4 $600 • Describe the energy conversion that occurs in electrolytic and voltaic cells.

  36. Category 4 $800 • Describe the reaction that occurs at the anode and cathode of an electrolytic cell.

  37. Category 4 $1000 • This equation describes a reaction at equilibrium. • For the forward reaction: • Which substance oxidized? • Which substance is reduced?

  38. Category 4 $200-Answer • LEO – when an atom loses electrons!

  39. Category 4 $400-Answer • GER – when an atom gains electrons.

  40. Category 4 $600-Answer • Electrical energy is converted to chemical energy.

  41. Category 4 $800-Answer • Oxidation occurs at the anode. • Reduction occurs at the cathode.

  42. Category 4 $1000-Answer • Chlorine is reduced. • Hydroxide is oxidized.

  43. Final Jeopardy • Nuclear Chemistry

  44. Final Jeopardy • Type final question here You have 1 minute to consult…

  45. Final Jeopardy • Type final question here You have 30 seconds to consult…

  46. Final Jeopardy • Type final question here You have 15 seconds to consult…

  47. Final Jeopardy • Type final question here Time Is Up

  48. Final Jeopardy - Answer • 58. 30 g • 59. 4 electrons • 60. Catalysts lower activation energy • 61. H atoms are added to break the double bond.

  49. Jeopardy • Thank you for playing another fine round of America’s favorite question and answer game.

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