Enter the half-reactions and the balanced cell reaction for the following galvan

Question

Enter the half-reactions and the balanced cell reaction for the following galvanic cells. (Enter states of matter in your answer.)
(a) Cd(s) | Cd2+(aq) || Au3+(aq) | Au(s)
(b) Fe(s) | Fe2+(aq) || Br2(aq), Br-(aq) | Pt(s)
(c) Cr(s) | Cr3+(aq) || Cu2+(aq) | Cu(s)

Enter the half-reactions and the balanced cell reaction for the following galvanic cells. (Enter states of matter in your answer.)
(a) Cd(s) | Cd2+(aq) || Au3+(aq) | Au(s)
(b) Fe(s) | Fe2+(aq) || Br2(aq), Br-(aq) | Pt(s)
(c) Cr(s) | Cr3+(aq) || Cu2+(aq) | Cu(s)

(a) anode:

(a) cathode:

(a) cell:

(b) anode:

(b) cathode:

(b) cell:

(c) anode:

(c) cathode:

(c) cell:

Explanation / Answer

a)
at anode oxidation occurs:
Cd (s) ----> Cd2+ (aq) + 2e-

at cathode reduction occurs:
Au3+ (aq) + 3e- ----> Au (s)

at cell:
3Cd + 2Au3+ ---> 3 Cd2+ + 2 Au

similarly do the rest
Rest are not related to this part and hence will be considered as different question

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