Question

2Na(aq)+2H2O(l)→2NaOH(aq)+H2(g)
C(s)+O2(g)→CO2(g)
2MnO−4(aq)+5SO2(g)+2H2O(l)→2Mn2+(aq)+5SO2−4(aq)+4H+(aq)

identify the oxidizing and reducing agents in each rxn

Answer 1

identify the oxidation state for each compound



in each reaction, the oxidizing agent is the compound that gets reduced in oxidation state, and the reducing agent gets raised to a higher oxidation state.