Question #66a11

1 Answer
Aug 7, 2016

Answer:

There are really two reactions.

Explanation:

In the first step, the iron reacts with sulfuric acid to produce hydrogen and iron(II) sulfate.

#"Fe"("s") + "H"_2"SO"_4("aq") → "H"_2("g") + underbrace("FeSO"_4("aq"))_color(red)("pale green")#

The oxygen in air then slowly oxidizes the iron(II) to iron(III).

#"4FeSO"_4("aq") + "O"_2("g") + "2H"_2"SO"_4("aq") → underbrace("2Fe"_2("SO"_4)_3("aq"))_color(red)("yellow") + "2H"_2"O"("l")#