Multiple ChoiceIn which of the following reactions does the oxidation number of hydrogen change?40views
Multiple ChoiceIn a redox reaction, which answer best describes the reducing and oxidizing processes?282views
Multiple ChoiceIn the electrochemical cell based on the reaction Zn(s) + Cu^{2+}(aq) → Zn^{2+}(aq) + Cu(s), which of the following correctly lists the half-reactions occurring at the anode and cathode?35views
Multiple ChoiceIn the redox reaction Zn + Cu^{2+} → Zn^{2+} + Cu, is the reaction shown an oxidation for zinc?38views
Multiple ChoiceWhich of the following chemical reactions is an oxidation-reduction (redox) reaction?1views
Multiple ChoiceWhich of the following half-reactions correctly describes an oxidation process?39views