For each of the following five reactions,circle the specific chemical species that is:reduced, and draw a box around thespecific chemical species that is oxidized:
a) MnO2 (s) + 2 I- (aq) +4 H+(aq) --> Mn2+ (aq) + I2 (aq) + 2H2O (l)
b) Cd (s) + 2 NiO(OH) (s) + 2 H2O (l) --> 2Ni(OH)2 (s) + Cd(OH)2 (s)
c) NH4+ (aq) + 2 O2 (g) -->NO3- (aq) + 2 H+ (aq) +H2O (l)
d) 2 CuFeS2 (s) + 4 O2 (g) -->Cu2S (s) + 2 FeO (s) + 3 SO2 (g)
e) 2 K2FeO4 (aq) + 3 Zn (s) -->Fe2O3 (s) + ZnO (s) + 2K2ZnO2 (aq)
