1. 13.2a Developing a Redox table

2.  the relative reactivity of metals can be used to determine which redox reactions are spontaneous In all redox reactions, electrons are transferred from a reducing agent (RA) to an oxidizing agent (OA)

3.  list of elements in decreasing order of their reactivity, or ability to react chemically in aqueous solution  most active elements appear at the top of the table  bottom right of ½ rxtn table  reactivity decreases as we move down the list  decreases as we move up the right side of ½ rxtn table  under ordinary conditions each element in the table can replace any element that appears below it  above it on ½ rxtn table

4. Activity Series of Metals

5.  a more active element displaces a less active element in a compound  metals displace metals or H Cu + 2 AgNO 3  Cu(NO 3 ) 2 + 2 Ag Mg + 2 HCl  MgCl 2 + H 2  nonmetals displace nonmetals 2 KI + Br 2  2 KBr + I 2  carbon displaces metals from oxides 3 C + Fe 2 O 3  3 CO + 2 Fe  always redox

7. Al + Zn(NO 3 ) 2 Al (NO 3 ) 3 + Zn Aluminum is higher than zinc so it replaces zinc in the compound Zn(NO 3 ) 2

8. K Ba Sr Ca Na Mg Al Mn Zn Cr Fe Cd Co Ni Sn Pb H Sb As Bi Cu Hg Ag Pd Pt Au displace H 2 from cold H 2 O from steam from acids react with O 2 in the air to make oxides Fe is above Cu, so Cu metal will not displace Fe 2+ K Ba Sr Ca Na Mg Al Mn Zn Cr Fe Cd Co Ni Sn Pb H Sb As Bi Cu Hg Ag Pd Pt Au displace H 2 from cold H 2 O from steam from acids react with O 2 in the air to make oxides Gold is at the bottom, so it is very unreactive. K Ba Sr Ca Na Mg Al Mn Zn Cr Fe Cd Co Ni Sn Pb H Sb As Bi Cu Hg Ag Pd Pt Au displace H 2 from cold H 2 O from steam from acids react with O 2 in the air to make oxides Zn is above H, so Zn will react with acids Zn + Fe 2+  Fe + Zn 2+  listing of metals by reactivity  free metal higher on the list displaces metal cation lower on the list  metals above H will dissolve in acid Cu + Fe 2+  no reaction Zn + 2 H +  H 2 + Zn 2+ K Ba Sr Ca Na Mg Al Mn Zn Cr Fe Cd Co Ni Sn Pb H Sb As Bi Cu Hg Ag Pd Pt Au displace H 2 from cold H 2 O from steam from acids react with O 2 in the air to make oxides Fe is below Zn, so Zn metal will displace Fe 2+

9. Mg is above Cu on the Activity Series Mg will react with Cu 2+ to form Mg 2+ and Cu metal but Cu will not react with Mg 2+

10.  Mg + H 3 PO 4   Cu + H 2 SO 4   Al + Fe 2+  Predict whether the following will occur

11.  Mg + H 3 PO 4  Mg 3 (PO 4 ) 2 + H 2  Cu + H 2 SO 4  no reaction  Al + Fe 2+  Al 3+ + Fe Sol’n

12.  http://www.chem.iastate.edu/group/Greenb owe/sections/projectfolder/flashfiles/redox/ home.html http://www.chem.iastate.edu/group/Greenb owe/sections/projectfolder/flashfiles/redox/ home.html

13. Predict whether the following will occur Cu + HCl CuCl 2 + H 2 H 2 + CuO H 2 O + Cu

14. Sol’n Predict whether the following will occur Cu + HCl CuCl 2 + H 2 no H 2 + CuO H 2 O + Cu yes

15.  Textbook p571 #2-7  LSM 13.2C (top half)