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Simple Compounds & Chemical Formulas 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. How many total dots should the diagram for silicon tetrahydride, SiH4 include?

Question 2 2. Why do some molecules have resonance?

Question 3 3. What is a binary compound?

Question 4 4. Which of the following structural formulas have the same molecular formula as C5 H12?

Question 5 5. When drawing Lewis dot structures, what should you do if you run out of electrons before all atoms are satisfied?

Page 2

Question 6 6. Which of the following will most likely have the highest lattice energy?

Question 7 7. How many dots would you put around carbon, a group IVA element?

Question 8 8. If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

Question 9 9. A Magnesium atom is most likely to have what charge as an ion?

Question 10 10. What is the octet rule?

Page 3

Question 11 11. Which of the following is NOT a property of covalent compounds?

Question 12 12. Which type of formula gives us the simplest ratio of the atoms of elements present in a chemical compound?

Question 13 13. How many bonds can hydrogen form?

Question 14 14. What charge do group IVA atoms have when they become ions?

Question 15 15. What is the best definition for resonance?

Page 4

Question 16 16. What does the charge on a polyatomic ion mean?

Question 17 17. What is the correct name for N2 O5?

Question 18 18. How many dots should be around an elemental symbol in a Lewis dot diagram if it has a full octet?

Question 19 19. If an ionic compound contains a transition metal, Roman numerals are used to determine the _____.

Question 20 20. What could be changed about this Lewis dot structure for IO- to make it more clear?

Page 5

Question 21 21. Which of the following formulas is already in its reduced form or simplest ratio?

Question 22 22. What is usually the first step when drawing a Lewis dot structure?

Question 23 23. What would be the correct Lewis dot diagram for arsenic trifluoride AsF3?

Question 24 24. What do you look at in the periodic table to determine the number of valence electrons possessed by an element?

Question 25 25. Which is the best definition of a covalent compound?

Page 6

Question 26 26. How is an ionic bond formed?

Question 27 27. Which of the following is the correct condensed structural formula for:

Question 28 28. How do you represent a triple bond in a structural formula?

Question 29 29. How are resonance structures for a molecule or polyatomic ion represented?

Question 30 30. When naming a binary compound, what determines the prefix for an element in the compound?

Simple Compounds & Chemical Formulas 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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