7. Which statement about the silver battery is correct if the net reaction is: Ag₂O + Zn ----> 2Ag + ZnO ? a) The mass o

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7 Which Statement About The Silver Battery Is Correct If The Net Reaction Is Ag O Zn 2ag Zno A The Mass O 1 (204.77 KiB) Viewed 63 times

7. Which statement about the silver battery is correct if the net reaction is: Ag₂O + Zn ----> 2Ag + ZnO ? a) The mass of the Ag₂O electrode increases as the battery is used. b) Ag₂O is the anode. c) The electrons flow from the Ag₂O electrode to the Zn electrode through the wire. d) The Zn electrode is the negative terminal of the battery. 8. Which of the following is the strongest reducing agent? a) Lit b) Zn c) Sn d) H₂ 9. Given the two reactions: Sn4+ + 2Cl¯ ----> Sn²+ + Cl₂ Eº = -1.21 V (1) 2Cr²+ + 13 2Cr³+ + 31- ----> Eº = 0.94 V (2) Which reaction(s) is(are) spontaneous at standard conditions? a) (1) and (2) b) only (1) c) only (2) d) neither (1) nor (2) 10. What is the resulting voltage produced for a cell that is made with the following reactions? Mg2+ + 2é ----> Mg (1) (2) Ag+ + é ----> Ag 11. If a piece of copper metal is dipped into a solution containing Cr³+ ions, what will happen? Explain using Eº values. 12. The standard reduction potential for the following reaction is-2.936 V. K+ + é ----> K What is the standard electrochemical potential for: a) K ----> K+ + é b) 3K+ + 3é ----> 3K 13. Will there be a reaction if a magnesium strip is placed in a solution containing Ca²+ ions? Explain 14. In the following reaction: 2FeCl₂ + SnCl4 ----> 2FeCl3 + SnCl₂ a) Which atom is oxidised? b) Which atom is reduced?