1. Science Starter HW ON DESK
What is the formula for sodium chloride? What about for chlorine?
Does AuSO4 have a polyatomic ion?
What is the difference between double and single replacement reactions?
4. Balance: ____ N2 + ____ F2  ____ NF3
5. What is the trend for electronegativity?

2. SWBAT read and understand the activity series
Objective
SWBAT predict the products for both single and double replacement reactions with balanced equations
SWBAT read and understand the activity series

3. Agenda Science Starter Predicting Products Exit Ticket/Homework
Single Replacement
Double Replacement
Practice
Exit Ticket/Homework

4. Unit 4: Chemical Reactions Predicting Products

5. What is the difference between double and single replacement?
DOUBLE REPLACEMENT
__Na + _MgCl2 __ NaCl + __Mg
NaOH+H2SO4Na2SO4+ H2O

6. Double or Single?
____Ba + ____AuSO4  ____ PbSO4 + ____ AgNO3  ____ KMnO4 + ____ ZnCl2 

7. CaCl2 + AgNO3 Ca(NO3)2 + AgCl
QUICK CHECK
C3H8 + 5 O2 3 CO2 + 4 H2O
H2+ N2  NH3
Fe + CuCl2  Cu + FeCl3
CaCl2 + AgNO3 Ca(NO3)2 + AgCl

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

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

10. Lithium (Li) is like Drake
Lithium (Li) is like Drake. He 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.

12. Notes
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: Iodine (I2) cannot replace Fluorine (F2)

13. C. Could this reaction occur? K + BaCl2  Ba + KCl
Notes
C. Could this reaction occur? K + BaCl2  Ba + KCl
Example Problem:
Why?

14. Single Replacement Partner Problems
With your partner, decide if the following reactions will occur.
Rb + LiF 
F2 + MgCl2 
Na2S + K 

15. Single Replacement – Predicting the Products
STEPS:
Determine which are switching (metals or halogens?)
Will partnered element trade up? (Look at activity series)
If the reaction will occur, swap, drop, and chop and balance equation
Predict the products of the following reactions:
Ex. KF + Li 

16. You Try!
Predict the products of the following reactions:
1. NaCl + F2 
2. Li2O + Na 

17. Predicting Products – Double Replacement

18. Predicting Products – Double Replacement
Notes
Predicting Products – Double Replacement
Double Replacement: Elements switch partners
AB + CD  AD + BC

19. Predicting Products – Double Replacement
Notes
Predicting Products – Double Replacement
A. You can predict products if you follow the general equation. A B + C D A D + C B CaCl2 + AgNO3 Ca(NO3)2 + AgCl B. You will also have to use your PToE and the polyatomic ion chart to swap, drop, and chop charges

20. Double Replacement Sample Problems
STEPS:
Put parentheses around polyatomic
Switch metals
Swap, drop and chop charges to make the products and balance
1. __NaOH + __KNO3

21. Partner Practice
2. K2SO4 + Mg(OH)2
3. __MgSO4 + __AgNO3 
4. NaBr + Ca(OH)2 
5. __Li2O + __NaNO3 

22. Group Work Take 2 You should not be moving around the classroom.
I should not see any cell phones.
I should not hear your voice over anyone else’s.
You should be ON TASK.
If you have any questions, ask 3 before you ask me.

23. PRE-LAB WORK (aq) = aqueous (g) = gas (l) = liquid (s) = solid
You must work with your group to complete “Part II” of your Homework packet… it will help you in turning verbal equations into formula equations!! You will need to do this in your lab report/write-up tomorrow!
(aq) = aqueous
(g) = gas
(l) = liquid
(s) = solid

24. Exit Ticket 1. Consider this incomplete chemical equation:
Ba + CuCl2 
What are the products of this equation?
BaCl2 and CuCl2
BaCuCl2 and Ba
BaCl2 and Cu
BaCu and Cl2
BIG QUIZ TOMORROW!!
WORKSHEET #4 is HOMEWORK!