Chapter 7 Test Review
Multiple choice questions about the stability lab, electron configurations, and ionic properties.
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1. Why do atoms form compounds?
2. What is an ionic bond?
3. What kinds of elements tend to form cations?
4. What kinds of elements tend to form anions?
5. What is the electron configuration for Na?
6. What will it do to become stable?
7. What will its charge be when it does this?
8. What noble gas electron configuration will it try to achieve?
9. What is the electron configuration for O?
10. What will it do to become stable?
11. What will its charge be when it does this?
12. What noble gas electron configuration will it try to achieve?
13. What compound would Na and O form?
14. If O does achieve the electron configuration for Ne, has it become Ne? Why or why not?
15. What are 2 properties of ionic compounds?
16. What is the oxidation number for X in XF3?
17. What is the oxidation number for Z in CaZ?
18. What is the oxidation number for E in NaE?
19. What is the formula for calcium fluoride?
20. What is the formula for potassium oxide?
21. What is the formula for aluminum sulfide?
22. What is the formula for cesium bromide?
23. What is the formula for nickel (III) oxide?
24. What is the formula for ferric sulfate?
25. What is the formula for nickelous chloride?
26. What is the formula for nickel(II) sulfide?
27. What is the formula for ammonium sulfate?
28. What is the formula for calcium sulfate?
29. What is the formula for aluminum sulfate?
30. What is the formula for beryllium phosphate?
31. What is the name for Na3PO4?
32. What is the name with roman numerals for Ni3(PO4)2?
33. What is the Latin name for Ni3(PO4)2?
34. What is the name for (NH4)2SO3?
35. What is the name for Na2CO3?
36. What is the name with roman numerals for SnCl2?
37. What is the Latin name for SnCl2?
38. What is the name for H2SO3 (SO3 is the polyatomic ion sulfite)?
39. What is the name for H2C2O4 (C2O4) is the polyatomic ion oxalate)?
40. What is the name for HI?
41. What is the formula for carbonic acid?
42. What is the formula for hydrofluoric acid?
43. What is the formula for nitrous acid?
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Chapter 7 review
Part I
There are 35 multiple choice questions about writing formulas/naming ionic compounds, acids and covalent compounds. Be sure that you can name compounds using both the traditional name and the stock system.
Part II. There are 6 math problems. See below:
Part II Directions:
1.Select and circle one of these compounds to answer the next series of questions
: 2. Show all work
3. circle your answers and include correct units and significant digits
Lithium phosphate, barium hydroxide ferrous nitrite
1. Calculate the molar mass and percent composition of the selected compound.
2. How many moles of your compound is present in 150.00 g of your selected compound?
3. How many oxygen atoms are there in the 150.00 grams of your compound?
4. skip
5. page 46 number 11
6. Page 46 #13
6. An empty crucible hass a mass of 11.65 g. When a hydrate is added to it, its weight becomes 13.60 grams. After heating it to a constant mass, the mass of the crucible and the anhydrous salt is 12.01grams.
a. Calculate the percentage of water in your original hydrate
b. If your hydrate was magnesium sulfide trihydrate, what is the accepted percent of water
c. What was the percent error?
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