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Understanding Chemical Bonding Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. According to the VSEPR theory,what happens to a molecule that has an unshared pair of electrons?

Question 2 2. Identify the requirement for a dipole-dipole force to exist.

Question 3 3. What is a polar molecule?

Question 4 4. London dispersion force is the only intermolecular force that works on _____.

Question 5 5. Why are metals shiny?

Page 2

Question 6 6. According to the VSEPR theory, what is the shape of AB4?

Question 7 7. Which of the following is an example of an ionic compound?

Question 8 8. How many dots should be around an elemental symbol in a Lewis dot diagram if it has a full octet?

Question 9 9. What is the correct name for MgCl2?

Question 10 10. Hydrogen bonds exist between X and Y. Which combination could be X and Y?

Page 3

Question 11 11. If an ionic compound contains a transition metal, Roman numerals are used to determine the _____.

Question 12 12. Two atoms with the same electronegativity would form what kind of bond?

Question 13 13. If a silicon atom has four valence electrons, what is the maximum number of bonds it can form?

Question 14 14. When naming a binary compound, what determines the prefix for an element in the compound?

Question 15 15. What is a macromolecule?

Page 4

Question 16 16. How can you use the VSEPR theory to determine if a molecule will be polar?

Question 17 17. How many dots would you put around carbon, a group IVA element?

Question 18 18. How many elements of unsaturation does a molecule with this chemical formula have?

Question 19 19. What types of ions generally form an ionic compound?

Question 20 20. Why is a functional group important?

Page 5

Question 21 21. To denote two resonance structures, the Lewis dot diagrams are shown with what symbol between them?

Question 22 22. What happens in constructive interference?

Question 23 23. When does an alkane not follow the saturation formula, 2N +2 rule, for the number of hydrogen atoms?

Question 24 24. What charge do group IVA atoms have when they become ions?

Question 25 25. An organic compound is represented by RX. Identify X.

Page 6

Question 26 26. Why does hybridization work?

Question 27 27. What would be the correct Lewis dot diagram for arsenic trifluoride AsF3?

Question 28 28. What is usually the first step when drawing a Lewis dot structure?

Question 29 29. A Magnesium atom is most likely to have what charge as an ion?

Question 30 30. How is a covalent bond formed?

Understanding Chemical Bonding Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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