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Answered

Ferrous sulfate (FeSO4) was used in the
manufacture of inks, most notably iron gall ink,
which was used from the middle ages until the end
of the eighteenth century. It can be obtained during
the reaction of aqueous ferric sulfate, Fe2(SO4)3,
with gaseous sulfur dioxide and water to form
aqueous sulfuric acid (H2SO4) and aqueous
ferrous sulfate.

Answer :

Osenigo

Ferrous sulfate (FeSO4) is obtained by the reaction of aqueous ferric sulfate with gaseous sulfur dioxide and water according to the equation below:

Aqueous ferric sulfate = [tex]Fe_2(SO_4)_3_{(aq)}[/tex]

Gaseous sulfur dioxide = [tex]SO_2_{(g)}[/tex]

Water = [tex]H_2O_{(l)}[/tex]

Aqueous sulfuric acid =  [tex]H_2SO_4_{ (aq)}[/tex]

Aqueous ferrous sulfate =  [tex]FeSO_4_{ (aq)}[/tex]

Thus, the balance equation becomes:

[tex]Fe_2(SO_4)_3_{(aq)}[/tex] +  [tex]SO_2_{(g)}[/tex] + [tex]2H_2O_{(l)}[/tex] [tex]--->[/tex] [tex]2 H_2SO_4_{ (aq)} + 2 FeSO_4_{ (aq)}[/tex]

More on ferrous sulfate can be found here:  https://brainly.com/question/10834028

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