2. Bellwork Balance the following Ionic compounds: How is an ionic bond formed? Potassium and Sulfur Na and Nitrogen

3. October 21, 2009 SWBAT Name ionic compounds SWBAT distinguish between ionic and covalent compounds Catalyst Show the formation of the following ionic compounds: – Strontium and Oxygen – Aluminum and Iodine

4. Agenda Catalyst HW Check Kriss Kross’ll make ya… Naming Practice

5. Alright… That process takes a long time…scientists aren’t going to do it every single time. WE HAVE A SHORCUT TO FIND WHAT IONIC COMPOUND WILL FORM! Get ready for it…

6. Kris Kross Method! Ca 3 As 2 Ca 2+ As 3-

7. Write down the stable ions and cross the oxidation numbers (charges) to make them subscripts Na 1+ Cl 1- NaCl Pb 4+ O 2- Pb 2 O 4

8. Ionic Compounds K F Ba N Ga O Ca Cl K Si Group12345678 Charge1+2+3+4-3-2-1-0

9. Ionic Compounds K + F - Ba N Ga O Ca Cl K Si Group12345678 Charge1+2+3+4-3-2-1-0

10. Ionic Compounds KF Ba N Ga O Ca Cl K Si Group12345678 Charge1+2+3+4-3-2-1-0

11. Ionic Compounds KF Ba 2+ N 3- Ga O Ca Cl K Si Group12345678 Charge1+2+3+4-3-2-1-0

12. Ionic Compounds KF Ba 3 N 2 Ga O Ca Cl K Si Group12345678 Charge1+2+3+4-3-2-1-0

13. Ionic Compounds KF Ba 3 N 2 Ga 3+ O 2- Ca Cl K Si Group12345678 Charge1+2+3+4-3-2-1-0

14. Ionic Compounds KF Ba 3 N 2 Ga 2 O 3 Ca Cl K Si Group12345678 Charge1+2+3+4-3-2-1-0

15. Ionic Compounds KF Ba 3 N 2 Ga 2 O 3 Ca 2+ Cl - K Si Group12345678 Charge1+2+3+4-3-2-1-0

16. Ionic compounds KF Ba 3 N 2 Ga 2 O 3 CaCl 2 K Si Group12345678 Charge1+2+3+4-3-2-1-0

17. Ionic compounds KF Ba 3 N 2 Ga 2 O 3 CaCl 2 K + Si 4- Group12345678 Charge1+2+3+4-3-2-1-0

18. Balancing Chemical Reactions KF Ba 3 N 2 Ga 2 O 3 CaCl 2 K 4 Si Group12345678 Charge1+2+3+4-3-2-1-0

19. For Polyatomics it gets a bit more complex Pb 4+ SO 4 3- Pb 3 (SO 4 ) 4 (NH 4 ) 1+ PO 4 3- (NH 4 ) 3 PO 4

20. Practice with writing formulas for ionic compounds Group12345678 Charge1+2+3+4-3-2-1-0

21. Naming Ionic Compounds

22. Draw a mental line.

23. Naming Ionic Compounds Binary Ionic Compounds – an ionic compound composed of two elements.

24. Naming Ionic Compounds 1)Ignore subscripts! 2)Second element ends in -ide.

25. Naming Ionic Compounds ZnO

26. Naming Ionic Compounds ZnO Zinc Oxide

27. Naming Ionic Compounds CaCl 2

28. Naming Ionic Compounds CaCl 2 Calcium Chloride

29. Naming Ionic Compounds Al 2 O 3

30. Naming Ionic Compounds Al 2 O 3 Aluminum Oxide

31. Naming Ionic Compounds Ternary Ionic Compounds – an ionic compound with more than 2 elements.

32. Naming Ionic Compounds Ionic Cheat Sheets!

33. Naming Ionic Compounds Do not lose this…you will need it the rest of your life (in my class).

34. Naming Ionic Compounds The way you use it…

35. Naming Ionic Compounds 1) Look up the ions on the cheat sheet and write the words next to them.

36. Naming Ionic Compounds BaCO 3

37. Naming Ionic Compounds BaCO 3 Normally the first element is the first piece (cation) and the rest is the second piece (anion).

38. Naming Ionic Compounds BaCO 3 Barium

39. Naming Ionic Compounds If the first element is +2, where should we find the second? (Remember, charges must balance!)

40. Naming Ionic Compounds BaCO 3 Barium

41. Naming Ionic Compounds BaCO 3 Barium Carbonate

42. Naming Ionic Compounds AlPO 3

43. Naming Ionic Compounds AlPO 3 Aluminum

44. Naming Ionic Compounds AlPO 3 Aluminum Phosphite

45. Naming Ionic Compounds H 3 PO 4

46. Naming Ionic Compounds H 3 PO 4 Hydrogen

47. Naming Ionic Compounds H 3 PO 4 Think: H +, we have 3 which means +3, where will PO 4 be?

48. Naming Ionic Compounds H 3 PO 4 Hydrogen Phosphate

49. Naming Ionic Compounds FeSO 4

50. Naming Ionic Compounds FeSO 4 Notice Iron appears in +2 and +3…

51. Naming Ionic Compounds FeSO 4 Sulfate

52. Naming Ionic Compounds FeSO 4 Since Sulfate is -2, Fe must be +2

53. Naming Ionic Compounds FeSO 4 Iron(II) Sulfate

54. Naming Ionic Compounds FeSO 4 Iron(II) Sulfate or Ferrous Sulfate

55. Practice! Use the Kriss Kross method to show what ionic compound will form for the following: – Na and Sulfur – Lead (II) and Oxygen – Chromium (III) and Nitrite – Lithium and Phosphate Name the following compounds: (watch out for transition metals!) – Na 3 PO 4 – Hg 3 BO 3 – Al(CN) 3 – PbBr 4 – Sb 2 (Cr 2 O 7 ) 3