1575454
Description
| Question | Answer |
| What has been oxidised? Cu2++Zn→Cu+Zn2+ | Zn |
| What is the oxidising agent? Cu2++Zn→Cu+Zn2+ | Cu2+ |
| What has been reduced? Cl2+2Na→2Na++2Cl− | Cl2 |
| What is the reducing agent? Cl2+2Na→2Na++2Cl− | Na |
| What has been oxidised? Cr2O2−7+ClO−2→Cr3++ClO−4 | ClO−4 |
| What is the oxidising agent? Cr2O2−7+ClO−2→Cr3++ClO−4 | Cr2O2−7 |
| What has been reduced? Pb+Fe3+→Fe2++Pb2+ | Fe3+ |
| What is the reducing agent? Pb+Fe3+→Fe2++Pb2+ | Pb |
| Balance this half equation Zn→Zn2+ | Zn→Zn2++2e− |
| Balance this half equation Fe3+→Fe2+ | Balance this half equation Fe3++e−→Fe2+ |
| Balance this half equation Cl−→Cl2 | Balance this half equation 2Cl−→Cl2+2e− |
| Balance this half equation O2→O2− | Balance this half equation O2+4e−→2O2− |
| Balance this half equation in acidic conditions MnO−4→Mn2+ | MnO−4+8H++5e−→Mn2+ +4H2O |
| Balance this half equation in acidic conditions S2O2−3→SO2−4 | S2O2−3+5H2O→2SO2−4+10H++8e− |
| Balance this half equation in acidic conditions Cr3+→Cr2O2−7 | 2Cr3++7H2O→Cr2O2−7+14H++6e− |
| Combine these half equations Ag++e−→Ag Cu→Cu2++2e− | 2Ag++Cu→2Ag+Cu2+ |
| Combine these half equations Co3++e−→Co2+ 2Cl−→Cl2+2e− | 2Co3+2Cl−→2Co2++Cl2 |
| Combine these half equations Fe→Fe3++3e− MnO−4+8H++5e−→Mn2++4H2O | 5Fe+3MnO−4+24H+→5Fe3++3Mn2++12H2O |
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