1. Topic: Spontaneity in REDOX
DO NOW:
One beaker Contains:
Zn(NO3)2 & Cu
AgNO3 & Cu
Which beaker is which…how can you tell?!

2. Single Replacement reactions are Redox Rxns
Use table J to predict if the reaction is
spontaneous
Any metal will donate (lose) its electrons to ion of
any metal below it. = Spontaneous
Any nonmetal will steal (gain) electrons
from the ion of any nonmetal below it.
= Spontaneous

3. One beaker Contains:
Zn(NO3)2 & Cu
AgNO3 & Cu
Which beaker is which…how can you tell?!

4. Which of the following will occur spontaneously
Li + AlCl3 
Cs + CuCl2 
I2 + NaCl 
Cl2 + KBr 
Fe + CaBr2 
Mg + Sr(NO3)2 
F2 + MgCl2 
Yes
Yes No
Yes No No
Yes

5. If the metal being oxidized is higher on table J, the rxn is spontaneous
You just told me this is spontaneous
3Li + AlCl3  3LiCl + Al
Let’s look at it in terms of Oxidation Reduction
Lithium = 0 +3 so it was oxidized
Aluminum = +30 so it was reduced

6. If the nonmetal being reduced is higher on table J, the rxn is spontaneous
You just told me this is spontaneous
F2 + MgCl2  MgF2 + Cl2
Let’s look at it in terms of Oxidation Reduction
Fluorine = 0 -1 so it was reduced
Chlorine = -10 so it was oxidized

7. Let’s try p. 9, cross out 4-6