8. Copper (I) and Copper (II)

9. Before the stock system was used, there used to be different names for each ion

15. Sodium ion Sulfide ion Copper (I) ion Lead (IV) ion Sulfate ion Cyanide ion

16. OH - Ca 2+ Sn 2+ PO 3 3- O 2-

24. Once again, the criss cross method is used However, the polyatomic ions are put in parentheses when multiplied For example: Calcium Nitrate Ca(NO3)2

29. Who knows how to play poker? THE RULES of FORMULAS POKER: You must form “hands” to make an ionic compound The “hands” must be a neutral compound Only 1 cation and 1 anion per hand (balance using subscript cards) Tally points and keep score! Winner of each table will face off in a champion round

32. Give the FORMULA: 1.Sodium Sulfate 2.Potassium Nitride 3.Tin (II) Oxide 4.Ammonium Carbonate

38. Element nameNumber of atomsPrefix Nitrogen2di- Oxygen1mono- The name is dinitrogen monoxide

41. Identify the following as ionic or molecular compounds: Then, using the rules, name or provide the formula for each.

52. Sour Taste Change indicators Some react with metals to produce H 2 Bases Bitter taste Change indicators Feel slippery