Question

1)fe+h2so4=feso4+h2^ 2) fe+h2so4=fe2(so4)3+h2o

Answer 1

2)2Fe + 4H2SO4 = Fe2(SO4)3 + 4H2O
4Fe + 5H2SO4 = 4FeSO4 + H2S + 4H2O

Answer 2

1) Fe + H2SO4 = FeSO4 + H2↑

In this reaction, iron (Fe) reacts with sulfuric acid (H2SO4) to form iron(II) sulfate (FeSO4) and hydrogen gas (H2) is released as a byproduct.

The reaction can be understood by looking at the oxidation states of the elements involved. Iron in its elemental form has an oxidation state of 0, while in FeSO4, iron has an oxidation state of +2. Sulfur in H2SO4 has an oxidation state of +6, while in FeSO4, it has an oxidation state of +6 as well. Hydrogen in its elemental form has an oxidation state of 0.

During the reaction, iron is oxidized from an oxidation state of 0 to +2, while sulfur is reduced from an oxidation state of +6 to +6. This is a redox (reduction-oxidation) reaction.

The balanced chemical equation for the reaction is:

2Fe + 3H2SO4 → Fe2(SO4)3 + 3H2↑

This equation shows that 2 moles of iron react with 3 moles of sulfuric acid to produce 1 mole of iron(III) sulfate and 3 moles of hydrogen gas.

2) Fe + H2SO4 = Fe2(SO4)3 + H2O

In this reaction, iron (Fe) reacts with sulfuric acid (H2SO4) to form iron(III) sulfate (Fe2(SO4)3) and water (H2O) is produced as a byproduct.

The reaction can also be understood by looking at the oxidation states of the elements involved. Iron in its elemental form has an oxidation state of 0, while in Fe2(SO4)3, iron has an oxidation state of +3. Sulfur in H2SO4 has an oxidation state of +6, while in Fe2(SO4)3, it has an oxidation state of +6 as well. Hydrogen in its elemental form has an oxidation state of 0.

During the reaction, iron is oxidized from an oxidation state of 0 to +3, while sulfur is reduced from an oxidation state of +6 to +6. This is also a redox (reduction-oxidation) reaction.

The balanced chemical equation for this reaction is:

3Fe + 4H2SO4 → Fe2(SO4)3 + 4H2O

This equation shows that 3 moles of iron react with 4 moles of sulfuric acid to produce 1 mole of iron(III) sulfate and 4 moles of water.

I hope this explanation clarifies the reactions for you! Let me know if you have any further questions.