14. Which species will be oxidized by O2 at standard state conditions and 25oC?

14. Which species will be oxidized by O2 at standard state conditions and 25oC?
a) Cu2+
b) MnO4-
c) I-
d) All of these 15. Which pair of ions will be most likely to react at standard state conditions?
a) MnO4- and Sn2+
b) Zn2+ and Cl-
c) I- and Cu
d) Fe3+ and Cu2+
23. Consider the following metals:
Pb / Cu / Ni / Fe / Al / Zn / Mg
State which metals will react in each of the following solutions.
a) HCl
b) CuSO4
c) Fe2(NO3)3
d) Ca(NO3)2
24. Will there be a reaction is a magnesium strip is placed in a solution containing Ca2+ ions?25. Can a solution of CrCl3 be stored in an aluminum container?29. Using the following spontaneous reactions classify the 3 metals involved (Cr Sn Al) according to increasing reductant properties.
a) 2Cr + 3Sn2+ 2Cr3+ + 3Sn
b) Al + Cr3+ Al3+ + Cr
30. What is the maximum potential difference that can be obtained from a cell which operates according to the following global reaction?
Cr + Au3+ Cr3+ + Au