CHM 2045

Note: There are several ways to solve the problems presented below. Our tutors will explain how they arrive at solutions and try to give problem solving strategies. In all instances, students should refer to their course instructors if they have questions about solutions.

Practice Exam 1

  1. Click here to download the Fall 2009 Exam 1 for CHM 2045. We strongly recommend that you print this and test yourself using exam timing (1 hour and 50 minutes).
  2. Check the answer key and try to determine the reason for any missed questions.
  3. Watch the video playlist below of our chemistry tutors working out specific problems.

Practice Exam 2

  1. Click here to download the Fall 2009 exam 2 for CHM 2045. We strongly recommend that you print this and test yourself using exam timing (1 hour and 50 minutes).
  2. Check the answer key and try to determine the reason for any missed questions.
  3. Click on the linked question numbers below to watch videos of our chemistry tutors solving specific problems.
  •   1. Calculate the wavelength of a photon emitted…
  •   2. Identify the atom or ion corresponding to…
  •   3. The wavelength of radiation used in…
  •   4. Which of the following sets of quantum numbers…
  •   5. Find the de Broglie wavelength…
  •   6. An electron moving near an atomic nucleus…
  •   7. Arrange the following elements…
  •   8. Arrange the following elements…
  •   9. Arrange the following ions…
  • 10. Which one of these is the most polar bond?
  • 11. Which of the following molecules are polar?
  • 12. Photodissociation of water has been suggested…
  • 13. What is the maximum number of electrons…
  • 14. The 2nd electron affinity for any atom…
  • 15. Element X has the following valence electron…
  • 16. Which of the following ionic compounds…
  • 17. What is the formal charge on the nitrogen atom…
  • 18. Select the following species which is…
  • 19. Select the following species which is…
  • 20. Identify the element of Period 2 that…
  • 21. Which of the following elements has the…
  • 22. Which of the following ground states…
  • 23. Oxygen diflouride is an unstable molecule that…
  • 24. In which one of the following structures…
  • 25. Which one of the following Lewis structures…

Practice Exam 3

  1. Click here to download the Fall 2009 Exam 3 for CHM 2045. We strongly recommend that you print this and test yourself using exam timing (1 hour and 50 minutes).
  2. Check the answer key and try to determine the reason for any missed questions.
  3. Watch the video playlist below of our chemistry tutors working out specific problems. Note: The following playlist currently only has selected problems from the practice exam.