What are the oxidizing and reducing agents, respectively, for this reaction?
2HCl + H2O2 + MnO2--> O2 + MnCl2 + 2H2O
a) H2O2 ; HCl
b) H2O2 ; MnO2
c) MnO2; HCl
d) MnO2; H2O2
The answer is D. After reading the explanation I understand that Mn's oxidation number went from +4 to +2 therefore became reduced and therefore makes MnO2 an oxidizing agent. O2 in H2O2 went from -1 to 0 therefore is a reducing agent.
My question though, is how do I know which of those compounds I need to find...
Chem Q pack #55-oxidizing and reducing agents
2HCl + H2O2 + MnO2--> O2 + MnCl2 + 2H2O
a) H2O2 ; HCl
b) H2O2 ; MnO2
c) MnO2; HCl
d) MnO2; H2O2
The answer is D. After reading the explanation I understand that Mn's oxidation number went from +4 to +2 therefore became reduced and therefore makes MnO2 an oxidizing agent. O2 in H2O2 went from -1 to 0 therefore is a reducing agent.
My question though, is how do I know which of those compounds I need to find...
Chem Q pack #55-oxidizing and reducing agents