Here is the overall reaction of a mercury oxide dry cell: zn + hgo --> zno + hg. in this reaction, which of the following gets oxidized?
a. hg
b. o
c. zn
d. hgo
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Ответ:
Zn -> Zn(+2) + 2e(-)
Hg(+2) + 2e(-) -> Hg
The answer to your question is C. I hope that this is the answer that you were looking for and it has helped you.
Ответ:
Part -1
Electrode A - Mg(s)
Electrode B -
Part-2
Option -C
Part - 3
Electrons flow from electrode -A to electrode -B.
Explanation:
Part-1
Electrode A is
Electrode B is
Part-2
From the electrode, magnesium looses two electrons and chlorine gains two electrons. Therefore, balanced redox equation for the voltaic cell is as follows.
Part-3
ions flow from the left to right.
ions flow from the right to left.
Therefore, Electrons flow from electrode -A to electrode -B.