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Holt McDougal Modern Chemistry Chapter 7: Chemical Formulas and Chemical Compounds 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. Which is true of mass spectroscopy?

Question 2 2. Determine the formula mass for CO2 (the 2 is a subscript)

Question 3 3. How would you properly represent the calcium 2+ ion?

Question 4 4. How do Ca2+ and phosphate, (PO4) 3- combine to make an electrically neutral compound?

Question 5 5. If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

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Question 6 6. When you are calculating the formula mass, what do you need to make sure you do with the subscripts (or tiny numbers next to the atoms)?

Question 7 7. What is the empirical formula of a compound containing (by mass) 36.5% sulfur and 63.5% iron?

Question 8 8. Which are the outermost electrons of an atom?

Question 9 9. Which of the following calculations is NOT needed to determine the empirical formula?

Question 10 10. What is the percent composition of Cu₂S?

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Question 11 11. What is the charge on the scandium (III) ion?

Question 12 12. Which of the following is NOT a property of covalent compounds?

Question 13 13. What is the correct name for N2 O5?

Question 14 14. What is the correct name for MgCl2?

Question 15 15. What is the proper name for the sulfur anion?

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Question 16 16. What is the correct name for Fe(OH)3?

Question 17 17. If an ionic compound contains a transition metal, Roman numerals are used to determine the _____.

Question 18 18. What does the empirical formula show?

Question 19 19. When naming a binary compound, what determines the prefix for an element in the compound?

Question 20 20. What is the formula for lithium fluoride?

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Question 21 21. How can you determine the charge of an ion formed by a representative element?

Question 22 22. Which of the following statements regarding monatomic ions is true?

Question 23 23. What is the percent composition of H₂SO₃?

Question 24 24. A negatively charged ion is called:

Question 25 25. What is a binary compound?

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Question 26 26. What is the formula mass of carbon monoxide, or CO?

Question 27 27. Why do some ionic compound names have Roman numerals in them?

Question 28 28. What is the mass number of iron (rounded to the nearest whole number)?

Question 29 29. The term monatomic ion is best defined as:

Question 30 30. What is the formula for Magnesium oxide?

Holt McDougal Modern Chemistry Chapter 7: Chemical Formulas and Chemical Compounds 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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