1. Final Exam Review

2. How many protons in a sulfur atom?

3.  16

4. How many valence electrons in an arsenic atom?

5. 55 55

6. J.J. Thomson discovered the _________.

7.  electron

8. Rutherford discovered the _________.

9.  nucleus

10. How many orbitals can be in each sublevel? spdfspdf spdfspdf

11.  s: 1  p: 3  d: 5  f: 7  s: 1  p: 3  d: 5  f: 7

12. Define: physical property

13.  Can be observed without a change in composition

14. Define: chemical change

15.  Involves a change in composition. It’s the same as a chemical reaction.

16. How many atoms in 1.3 moles of Carbon?

17.  7.8 x 10 23

18. Balance: CH 4 + O 2  CO 2 + H 2 O

19.  CH 4 + 2 O 2  CO 2 + 2 H 2 O

20. State type of reaction & complete equation  AlPO 4 + Ca(NO 3 ) 2 

21. State type of reaction & complete equation  AlPO 4 + Ca(NO 3 ) 2  Al(NO 3 ) 3 + Ca 3 (PO 4 ) 2

22. Balance the equation  AlPO 4 + Ca(NO 3 ) 2  Al(NO 3 ) 3 + Ca 3 (PO 4 ) 2

23. Balance the equation  2 AlPO 4 + 3 Ca(NO 3 ) 2  2 Al(NO 3 ) 3 + Ca 3 (PO 4 ) 2

24. Write the formula for ammonium carbonate

25.  (NH 4 ) 2 CO 3

26. Write the formula for Iron (III) Carbonate

27.  Fe 2 (CO 3 ) 3

28. What is the molar mass of ferrous phosphate?

29.  Fe 3 (PO 4 ) 2  357.5 g/mole  Fe 3 (PO 4 ) 2  357.5 g/mole

30. How many neutrons are there in sulfur-33 ?

31.  17

32. What are orbitals?

33.  Areas of highest probability of electron location

34. What is a polar covalent bond?

35.  A bond in which the electrons are shared unequally among the atoms

36. Draw the Lewis structure for SiO 2

37. OSiO

38. Write the electron configuration for Fe

39.  1s 2 2s 2 2p 6 3s 2 3p 6 4s 2 3d 6

40. What are the valence electrons for Br?

41.  4s 2 4p 5

42. Additional for Honors Chemistry

43. How does the atomic radius change going across a row and down a group on the periodic table?

44.  Decreases across a row (period)  Decreases down a group  Decreases across a row (period)  Decreases down a group

45. How does the ionization energy change going across a period and down a group on the periodic table?  Increases across a row (period)  decreases down a group  Increases across a row (period)  decreases down a group

46. In the reaction AlPO 4 + Ca(NO 3 ) 2  Al(NO 3 ) 3 + Ca 3 (PO 4 ) 2 Which product will form a precipitate?

47.  Ca 3 (PO 4 ) 2

48. In the reaction MgCl 2 + Ag 2 (SO 4 )  Which product will form a precipitate?

49.  AgCl