Question

Осуществите ряд превращений! Срочно! Fe - Fe3O4 - Fe - FeCl2 H2O - H2 - Cu - Cuo - CuSO4

Answer 1

1)
3Fe+2O2=Fe3O4
3Fe3O4 + 8Al = 4Al2O3 + 9Fe
Fe+2HCl=FeCl2+H2↑
2)
2K+2H2O=2KOH+H2↑
CuO+H2=Cu+H2O
2Cu+O2=2CuO
CuO+H2SO4=CuSO4+H2O

Answer 2

1) Fe -> Fe3O4

3Fe+2O2 -> Fe304

2) Fe3O4 -> Fe

Fe3O4 + Al -> Fe + Al2O3

3) Fe -> FeCl2

Fe + 2HCl -> FeCl2+H2

Answer 3

Transformation Steps:

1. Fe -> Fe3O4: - The transformation from Fe to Fe3O4 involves the oxidation of iron. Iron reacts with oxygen to form iron(II,III) oxide, also known as magnetite. - The balanced chemical equation for this reaction is: 3Fe + 2O2 -> Fe3O4 [[1]].

2. Fe3O4 -> Fe: - The transformation from Fe3O4 to Fe involves the reduction of iron(II,III) oxide. Iron(II,III) oxide is reduced by heating it in the presence of carbon monoxide gas. - The balanced chemical equation for this reaction is: Fe3O4 + 4CO -> 3Fe + 4CO2 [[2]].

3. Fe -> FeCl2: - The transformation from Fe to FeCl2 involves the reaction of iron with hydrochloric acid (HCl). Iron reacts with HCl to form iron(II) chloride and hydrogen gas. - The balanced chemical equation for this reaction is: Fe + 2HCl -> FeCl2 + H2 [[3]].

4. FeCl2 + H2O -> H2 + FeCl3: - The transformation from FeCl2 to FeCl3 involves the reaction of iron(II) chloride with water. Iron(II) chloride reacts with water to form hydrogen gas and iron(III) chloride. - The balanced chemical equation for this reaction is: FeCl2 + H2O -> H2 + FeCl3 [[4]].

5. Cu -> CuO: - The transformation from Cu to CuO involves the oxidation of copper. Copper reacts with oxygen to form copper(II) oxide. - The balanced chemical equation for this reaction is: 2Cu + O2 -> 2CuO [[5]].

6. CuO -> CuSO4: - The transformation from CuO to CuSO4 involves the reaction of copper(II) oxide with sulfuric acid (H2SO4). Copper(II) oxide reacts with sulfuric acid to form copper(II) sulfate and water. - The balanced chemical equation for this reaction is: CuO + H2SO4 -> CuSO4 + H2O [[6]].

Please note that these transformations are based on the given chemical equations and may require specific conditions such as temperature, pressure, or catalysts to occur.