Question: In aqueous solution, hydrogen sulfide reduces (a) Fe3+ to Fe2+ (b) Br2 to Br- (c) MNO4- to Mn2+ (d) HNO3 to NO2. In all cases,

In aqueous solution, hydrogen sulfide reduces
(a) Fe3+ to Fe2+
(b) Br2 to Br-
(c) MNO4- to Mn2+
(d) HNO3 to NO2. In all cases, under appropriate conditions, the product is elemental sulfur. Write a balanced net ionic equation for each reaction.

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