Attacking the TEKS: Focus on Chemical Reactions presented by Claudia Wallace, ACT2 2010 This session will expose you to the new iEKS and College Readiness Standards. Ideas for sequencing and planning the unit will be shared along with tips for appropriate demos, labs, and assessments. The intended audience is for teachers with 3 or less years of experience or anyone who wants to delve deeper into the new standards.

1. Chemical Reactions

5. Quiz-Endothermic/Exothermic An ice pack is used in athletic events when a player has an injury. An ice pack contains two different chemicals that when combined together cause a chemical reaction to happen. This reaction is responsible for the sudden decrease temperature of the pack. Draw an energy diagram of this reaction. On your diagram, label the  H and activation energy. Is this reaction endothermic or exothermic? Describe the net result change in energy (temperature).

7. 60 ionic formulas to write 45. 44. 43. 42. 41. phosphorus 40. 39. 38. 37. 36. permanganate 35. 34. 33. 32. 31. oxygen 30. 29. 28. 27. 26. chromate 25. 24. 23. 22. 21. hydroxide 20. 19. 18. 17. 16. chlorate 15. 14. 13. 12. 11. phosphate 10. 9. 8. 7. 6. sulfate 5. 4. 3. 2. 1. chlorine calcium ammonium copper I iron II aluminum Write names and formulas for each compound.

12. What is the generic form of each? Type of reaction? How are these alike? What do you look for that tells you the type of reaction? What steps do you follow to write a balanced equation? Chemical Reactions

13. Quiz-Predicting, Balancing and Types Write a balanced equation and indicate the type of reaction in the blank beside each set of reactants. _____ 1. potassium + nitrogen  _____ 2. C 2 H 6 + oxygen  _____ 3. strontium chloride  _____ 4. calcium acetate + aluminum carbonate  _____ 5. zinc bromide + chlorine 

18. Ag Cu Electrochemistry Cells Write the half-reactions for each equation. Determine which substance is oxidized and which is reduced. Write a balanced redox equation. Label the drawing: Anode Cathode Direction of electron flow Solution in each beaker 1. Cu + AgNO 3  Ag + Cu(NO 3 ) 2 5 electrochemistry cells to label and write equations for

19. #4 Complete and balance these combustion reactions. 1. C 2 H 6 2. C 7 H 16 3. C 5 H 12 4. C 10 H 22 Review 8 Horse Race Cards