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TExES Physical Science 6-12: Ionic & Covalent Bonds 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. What is the formula for Magnesium oxide?

Question 2 2.

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 3 3. Which organic macromolecule is responsible for transmitting genetic information?

Question 4 4. Why do some ionic compound names have Roman numerals in them?

Question 5 5. What is an example of a naturally occurring inorganic macromolecule?

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Question 6 6. What is the first thing you need to know to use the hybridization theory?

Question 7 7. An organic compound is represented by RX. Identify X.

Question 8 8. What type of bond forms when atoms have highly different electronegativities?

Question 9 9. In larger atoms, why can outer electrons move more freely?

Question 10 10. If carbon, electronegativity of 2.6 were to share electrons with sulfur, electronegativity 2.6, what kind of bond would it form?

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Question 11 11. Which is the best definition of a covalent compound?

Question 12 12. What happens when a neutral molecule becomes temporarily dipole?

Question 13 13. A Magnesium atom is most likely to have what charge as an ion?

Question 14 14. Which of the following best describes the octet rule?

Question 15 15. Why is a functional group important?

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Question 16 16. How can you determine the charge of an ion formed by a representative element?

Question 17 17. How is a covalent bond formed?

Question 18 18. What is an anion?

Question 19 19. Why would you not have two sodium (Na) atoms in a compound with only one chlorine (Cl) atom?

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. In chemistry, the Greek letter delta:

Question 22 22. What is bond energy?

Question 23 23. How do Ca2+ and phosphate, (PO4) 3- combine to make an electrically neutral compound?

Question 24 24. If oxygen with an electronegativity of 3.4 were to share electrons with lithium, electronegativity of 1.0, what kind of bond would form?

Question 25 25. Select the general formula for carboxylic acid.

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Question 26 26. Which best describes an anion?

Question 27 27. Why is it possible for an alkane to contain an element of unsaturation?

Question 28 28. How many total dots should the diagram for silicon tetrahydride, SiH4 include?

Question 29 29. Which of the following describes molecules with the same chemical formula but different molecular structures?

Question 30 30. A cation has a _____ charge.

TExES Physical Science 6-12: Ionic & Covalent Bonds 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!

TExES Physical Science 6-12 (237): Practice & Study Guide  /  Science Courses
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