CeciliaHampton CeciliaHampton 19-04-2017 Advanced Placement (AP) contestada Which half-reaction correctly represents reduction? 1. Ag→Ag⁺+e⁻ 2.F₂→ 2F⁻ + 2e⁻ 3.Au³⁺3e⁻→ Au 4.Fe²⁺+e⁻→ Fe³⁺