1. Predicting Products

2. Warm Up WKSHT #3 OUT!! 1.What is the formula of calcium chloride? 2.Does AuSO 4 have a polyatomic ion? What is it? 3. What is the difference between double and single replacement? EQ: What are the rules for predicting the products of rxns? HOT Q1: When will a single replacement rxn occur? HOT Q2: How do I predict the product of single replacement rxns? HOT Q3: How do I predict the product of double replacement rxns? Students will identify the characteristics of an endothermic reaction

3. Agenda Warm Up Predicting Products Exit Ticket ANNOUNCEMENTS: WKSHT #4 is HW, Quiz TOMORROW, test on Tuesday (when you get back from break)

4. Warm Up Sheet Return / Packets

5. What is the difference between double and single replacement? SINGLE REPLACEMENTDOUBLE REPLACEMENT __Na + _MgCl 2  __ NaCl + __MgNaOH + H 2 SO 4  Na 2 SO 4 + H 2 O

6. Double or Single? ____Ba + ____AuSO 4  ____ PbSO 4 + ____ AgNO 3  ____ KMnO 4 + ____ ZnCl 2 

7. Predicting Products – Single Replacement

8. Predicting Products – Single Replacements Definition: One element replaces another element A +BC  AC +B Notes

9. Who would have an easier time getting a date? Or If you were dating Jabba the Hut, would you replace it with Megan Fox ?

10. Lithium (Li) is like Meghan Fox. She will always be able to get a date with another element. Jabba the Hut is like Mercury (Hg). If he gets a date he can easily be replaced.

11. A. Elements higher on the activity series can replace elements lower on the chart. - Ex: Lithium (Li) can replace Mercury (Hg) B. Elements lower on the chart CANNOT replace elements higher on the chart. - Ex: Nickel (Ni) cannot replace Sodium (Na) Notes

12. Example Problem: C. Could this reaction occur? K + BaCl 2  Ba + KCl __________ Notes Why? ________________ ________________ ________________ ______________

13. Single Replacement Partner Problems With your partner, decide if the following reactions will occur. 1.Rb + LiF  RbF + Li 1.BaF 2 + Mg  MgF 2 + Ba 1.Na 2 S + K  K 2 S + Na

14. Predict the products of the following reactions: Ex. KF + Li  Single Replacement – Predicting the Products STEPS: 1.Find the nonmetal element 1.Will the nonmetal element trade up? (Look at activity series) 1.If the reaction will occur, swap, drop, and chop it to make the new compound

15. You Try! Predict the products of the following reactions: 1. BaO + Rb  2. HgO + Na 

16. Predicting Products – Double Replacement

17. Double Replacement: Elements switch partners AB + CD  AD + BC Notes

18. Predicting Products – Double Replacement A. You can predict products if you follow the general equation. A B + C D A D + C B CaCl 2 + AgNO 3  Ca(NO 3 ) 2 + AgCl B. You will also have to use your PToE and the polyatomic ion chart to swap, drop, and chop charges Notes

19. Double Replacement Sample Problems 1. __NaOH + __KNO 3  STEPS: 1.Write the general equation above the reaction 2.Swap, drop and chop charges to make the products

20. Partner Practice 2. CaSO 4 + Mg(OH) 2 

21. Partner Practice 3. __MgSO 4 + __AgNO 3 

22. Partner Practice 4. NaBr + Ca(OH) 2 

23. Partner Practice 5. __Li 2 O + __NaNO 3 

24. Exit Ticket 1. Consider this incomplete chemical equation: Ba + CuCl 2  What are the products of this equation? A.BaCl 2 and CuCl 2 B.BaCuCl 2 and Ba C.BaCl 2 and Cu D.BaCu and Cl 2 BIG QUIZ TOMORROW!! WORKSHEET #4 is HOMEWORK!

25. Icy/Hot Lab 1.Grab two baggies for your table. 2.With a marker label one Baking Soda, the other Yeast. 3.Fill the Baking Soda baggie with a few drops of Vinegar. Shake. 4.Fill the Yeast baggies with a few drops of Hydrogen Peroxide. Shake it like a Polaroid picture. 5.DESCRIBE IN DETAIL WHAT HAPPENS IN EACH BAGGIE.

26. Hot Pack/ Cold Pack Mini Lab 1.Grab two baggies for your table. 2.With a marker label one Baking Soda, the other Yeast. 3.Fill the Baking Soda baggie with a few drops of Vinegar. Shake. 4.Fill the Yeast baggies with a few drops of Hydrogen Peroxide. Shake it. DATA/ANALYSIS: Describe in detail what happened in each reaction. Vinegar & Baking Soda: Hydrogen Peroxide & yeast:

27. Consensus Law of Conservation of Energy: What two types of energy have we learned about so far? 3 rd Type: Chemical energy = energy stored in chemical bonds EXOTHERMIC (energy EXits the system) – Chemical energy stored in the reactants is converted to thermal energy – Thermal energy leaves the system (gives off energy)  feels warm or hot ENDOTHERMIC (energy goes INTO the system) – Thermal energy from the system is absorbed during the rxn  feels cold! – Thermal energy is converted to chemical energy and is then stored in the products

28. Quiz Return

29. Exit Ticket