Final answer:
The balanced cell reaction for the cell schematic is Pt(s) + H₂(g) + 2H+(aq) + 2Br-(aq) → 2Br(aq) + Pt(s) + 2H₂O(l).
Step-by-step explanation:
The balanced cell reaction for the given cell schematic is:
Pt(s) + H₂(g) + 2H+(aq) + 2Br−(aq) → 2Br(aq) + Pt(s) + 2H₂O(l)
In this reaction, hydrogen gas (H₂) is oxidized to form 2 Br− ions, while two hydrogen ions (H+) and 2 Br− ions are reduced to form hydrogen gas (H₂) and water (H₂O).