Chemistry - Compound Test Review
This completed review is worth 10 points on your test if turned in BEFORE the test.
Test Date: _Thursday, November 19, 2015_
Definitions:
1. Anion:
5. Covalent bond:
2. Cation
6. Metallic bond:
3. Ionic bond:
7. Polyatomic ion:
4. Oxidation number:
8. The Octet Rule:
Problems:
9. What type of bond is formed between a metal and non-metal?
10. When a metal bonds with a non-metal, the metal ___________ (loses or gains) electrons and the non-metal
_________ (loses or gains) electrons.
Determine which element will lose electrons and which will gain electrons in an ionic bond:
11. Lithium: ______________
16. Iron: ______________
12. Carbon: ______________
17. Nitrogen: ______________
13. Magnesium: ______________
18. Fluorine: ______________
14. Sodium: ______________
19. Chlorine: ______________
15. Strontium: ______________
20. Cobalt:_____________
You must know how to determine the oxidation number of elements by looking at the period table. Label oxidation
numbers on the period table below for groups: 1A, 2A, 3A, 5A, 6A, and 7A
21. The oxidation number for oxygen is -2 and is shown like this: O-2. Is the oxidation number called a subscript or
superscript?
22. The overall charge of an ionic compound is always to _______________. (Hint: the sum of oxidation numbers)
When naming an ionic compound containing a transition element. The charge (oxidation number) of the metal
must be written as a roman numeral in parenthesis after the metal. Examples: name the compounds:
Fe2O3
a.
b. CoN
c. Cu(NO3)2
23. What type of bond is formed between 2 non-metals?
24. You must memorize the prefixes used to name covalent molecules. List the prefixes used to show how many
atoms of each element are present in a covalent bond:
Determine if the following compounds will form an ionic, covalent, or polyatomic bond:
11. Sodium and fluorine: _____________________
16. Iron and oxygen: _____________________
12. Hydrogen and carbon: ____________________
17. Calcium and chlorine: _________________
13. Magnesium, oxygen and hydrogen: __________
18. Aluminum, nitrogen and oxygen: ___________
14. Nitrogen and oxygen: _____________________
19. Zinc and fluorine: ______________________
15. Potassium and chlorine:____________________
20. Sulfur and oxygen: _____________________
Determine the type of bond formed and then write the chemical formula (Use criss-cross method for ionic &
polyatomic):
21. Sodium fluoride: ______________________
26. Iron (III) oxide: _______________________
22. Carbon tetrahydride: ___________________
27. Calcium chloride: _____________________
23. Magnesium hydroxide: _________________
28. Aluminum nitrate: _____________________
24. Nitrogen dioxide: _____________________
29. Zinc fluoride: ____________________ (Zn+2)
25. Potassium chloride: ____________________
30. Sulfur trioxide:_______________________
Determine the type of bond formed and then name the following compounds (Include roman numerals for
transition metals):
31. SO2 ___________________________________
36. LiF ______________________________
32. N2O __________________________________
37. CaPO4 ____________________________
33. KCl __________________________________
38. KNO3 _____________________________
34. FeO __________________________________
39. C4H8 ______________________________
35. MnBr _________________________________
40. BeCl ______________________________
41. Draw the Lewis structure for Lithium fluoride, LF.
42. What is the empirical formula of a compound containing 75% carbon and 25% hydrogen?
43. A compound was analyzed and found to contain 13.5 g Ca, 10.8 g O, and 0.675 g H. What is the empirical
formula of the compound?
**Remember**It will do you no good to memorize the names, formulas, or examples you see on this review. You must KNOW
HOW TO NAME COMPOUNDS, WRITE FORMULAS, AND SOLVE PROBLEMS. The test will have different compounds.