1. Chemical Bonding Review

3. Answer C

4. The chemical formula for calcium chloride is
A. CaCl C. CaCl2
B. Ca2Cl D. Ca2Cl2

5. Answer C

6. Which is an example of an ionic compound?
A. H2O B. CO2 C. KCl D. PCl3

7. Answer C

8. When two nitrogen atoms are bonding then they will share ____ covalent bonds.
A. 1 B. 2 C. 3 D. 4

9. Answer C

10. Covalent compounds tend to form with ________________.

11. Answer 2 Non Metals

12. In covalent compounds, atoms are held together when they:

13. Answer Share Electrons

15. Answer B

16. The bonds in most compounds
A. are on a continuum between ionic and covalent.
B. are always completely covalent or completely ionic.
C. are only theoretical.
D. are nonexistent.

17. Answer A

18. Lithium has one electron in its outer shell and fluorine has seven electrons in its outer shell. The atoms will form a(n) _____ bond by _____ their electrons.
A. covalent, transferring C. covalent, sharing
B. ionic, transferring D. ionic, sharing

19. Answer B

20. Sulfur atoms have six electrons in their outer shells
Sulfur atoms have six electrons in their outer shells. When two sulfur atoms bond, they will form
a(n) _____ bond by _____ their electrons.
A. covalent, transferring C. covalent, sharing
B. ionic, transferring D. ionic, sharing

21. Answer C

22. A type of reaction in which a substance releases energy to the surroundings is: ________________________.

23. Answer Exothermic

25. Answer A

26. What coefficient is missing in
C2H4 + (?)O2 2CO2 +2H2O?
A. 2 B. 3 C. 4 D. 5

27. Answer B

28. An ionic bond is the attraction between
A. Similarly charged ions
B. Oppositely charged ions
C. Neutral Ions
D. Neutral Atoms

29. Answer B

30. When nickel combines with fluorine to form nickel (III) fluoride, the charge of the nickel ion is:
A B C D. +4

31. Answer C

32. The name for the compound with the formula CuBr2 would be written as:
A. Copper (II) Bromide
B. Copper (I) Bromide
C. Copper Bromide
D. Copper (III) Bromide

33. Answer Copper (II) Bromide

34. Balance the equation below. (2 Points)
KI Pb(NO3)2  PbI KNO3

35. Answer 2KI + Pb(NO3)2  PbI2 + 2KNO3