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Physical Science - Understanding Chemical Bonding: Help and Review 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 is the shape of AB4?

Question 2 2. What could be changed about this Lewis dot structure for IO- to make it more clear?

Question 3 3.

Which of the following statements are true?

I. Noble gases complete their valence level by sharing electrons.

II. Covalent bonds are weak and easily broken.

III. Covalent bonds allow us to make predictions on how the molecule will look.

Question 4 4. Identify the requirement for a dipole-dipole force to exist.

Question 5 5. Why is it possible for an alkane to contain an element of unsaturation?

Page 2

Question 6 6. How are metallic bonds different from ionic and covalent bonds?

Question 7 7. According to the VSEPR theory,what happens to a molecule that has an unshared pair of electrons?

Question 8 8. What happens when a neutral molecule becomes temporarily dipole?

Question 9 9. How is an organic compound described?

Question 10 10. Why should you draw a molecule as a Lewis dot structure first before drawing it in 3D?

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Question 11 11. How many dots should be around an elemental symbol in a Lewis dot diagram if it has a full octet?

Question 12 12. How many elements of unsaturation does a molecule with this chemical formula have?

Question 13 13. What happens in constructive interference?

Question 14 14. If a silicon atom has four valence electrons, what is the maximum number of bonds it can form?

Question 15 15. What monomer are carbohydrates made of?

Page 4

Question 16 16. What is the correct Lewis dot diagram for CH4?

Question 17 17. How can you use the VSEPR theory to determine if a molecule will be polar?

Question 18 18. What is an example of a naturally occurring inorganic macromolecule?

Question 19 19. Two different molecules can participate in which of the following bonds?

Question 20 20. What happens when both of the orbitals in a molecule are in phase, either both positive or both negative, and the electrons in the bonds are at their lowest energy level?

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Question 21 21. What determines the order the compounds are written in for a binary compound?

Question 22 22. What is the correct formula name for ICl3?

Question 23 23. London dispersion force is the only intermolecular force that works on _____.

Question 24 24. How are ions formed?

Question 25 25. What is the correct name for MgCl2?

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Question 26 26. What is a binary compound?

Question 27 27. How many total dots should the diagram for silicon tetrahydride, SiH4 include?

Question 28 28. What is a valence electron?

Question 29 29. What is resonance?

Question 30 30. What charge do group IVA atoms have when they become ions?

Physical Science - Understanding Chemical Bonding: Help and Review 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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