The answer & explanation for this question is given in the attachment below.
Answer:
i honetly dont thing anyone knows that so look it up
Explanation:
The answer is D, it controls what comes in & out the cell, well i hope so!
Answer:
I dont know how to take a picture so I will just tell you the answer. The answer is no.
Explanation:
Hope this helps. :) :D
Answer:
Time take to deposit Ni is 259.02 sec.
Explanation:
Given:
Current
A
Faraday constant

Molar mass of Ni

Mass of Ni
g
First find the no. moles in Ni solution,
Moles of Ni 
mol
From the below reaction,
⇆ 
Above reaction shows "1 mol of
requires 2 mol of electron to form 1 mol of
"
So for finding charge flow in this reaction we write,

Charge flow
C
For finding time of reaction,

Where
charge flow


sec
Therefore, time take to deposit Ni is 259.02 sec.