1. CER A way to analyze data and justify your conclusions

2. CER Claim: Study the tables and make a claim about the relationship. Evidence: Site and compare specific data points or trends to justify your claim. Reasoning or Rationale: Try to explain why the trends or data points are the way they are. Use scientific terminology

3. Zn Cu SO 4 Who would win if we put Zinc metal and iron metal in copper sulfate at the same time? Fe

5. Which of the following can push electrons on to hydrogen ions Copper Mercury Silver Zinc Which of the following is best becoming an ion Tin Magnesium Lead Copper

6. Arrange the following in order of decreasing ability to push electrons on to another element Silver Sodium Aluminum Tin

7. These Standard reduction values can be used to measure the total power of the push of electrons from an atom onto an ion

10. Zn  Zn +2 + 2e - Cu 2+ + 2e-  Cu

11. Cu 2+ + 2e-  Cu +0.34 volts But we cant find Zn  Zn +2 + 2e - only Zn 2+ + 2e-  Zn -0.76 volts Well if we flip the reaction we would get Zn  Zn +2 + 2e - +0.76

12. So now we know Zn  Zn +2 + 2e - +0.76V Cu 2+ + 2e-  Cu +0.34V

13. So Electropotential of Ag + + e-  Ag Is the same as the EP of 2Ag + + 2e-  2Ag

14. If copper and silver are used to build a cell which would gain electrons What is the electropotential of Cu +2 + 2 e-  Cu 0.34V Ag + + e-  Ag 0.80V

17. When first testing are to derive electro potentials the hydrogen electrode is always placed as the negative electrode of a cell and is written as: As a cathode it would be written as As an anode it would be written as Pt 2H + (aq), H 2(g) 2H + (aq), H 2(g) Pt

18. Zinc Half cell is simply a 1 molar solution of zinc ions (zinc nitrate aqueous) with an electrode of zinc metal If it is the cathode the it would be written as Zn(s),Zn +2 as an anode it would be written as Zn 2+ (aq), Zn (s)

20. Zn (s) Zn 2+ (aq), Cu +2 (aq) Cu (s) Zn (s) Zn 2+ (aq), H + (aq), H 2(s) Pt Pt H 2(s), H + (aq) Cu 2+ (aq),, Cu (s)

21. Oxidation Reduction Remember An Ox and Red Cat Zn (s) Zn 2+ (aq), Cu +2 (aq) Cu (s)