Question

What is the standard potential of cell that uses the (Zn2+ / Zn)

And ( Ag+ / Ag ) couples ? Which couple is negative/Write the equations for the cell reaction occurring at unit negative concentrations. The standard electrode potentials for Zn2+ / Zn and Ag+ / Ag are -0.763 V and + 0.799 V respectively.
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Answer 1

Answer:

the super oxides species is represented as O2- , since the compound is neutral, therefore, the oxidation state of potassium is +1.

Answer 2

$\rm\huge\underline{Answer}$

the branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances.