High 1 chemistry, iron compounds and their transformation relationships, write chemical equations an

Hello: 1. Fe3O4+4CO=3Fe+4CO2 (high temperature) ion-free equation.

Fe+2O2=Fe3O4 (ignition) No ion equation.

3. Fe+2HCl=FeCl2+H2 (gas) Fe+2H+ =Fe2+ +H2 (gas).

Fe+3Cl2=2FeCl3 (ignition).

fecl3+fe=3fecl2 2fe3+ +fe=3fe2+

fecl2+cl2=2fecl3 2fe2+ +cl2=2fe3+ +2cl-

7. FeCl2+2NaOH = Fe(OH)2 (precipitation) + 2NaCl Fe2+ +2OH- =Fe(OH)2 (precipitation) +

8、fe(oh)2+2hcl=fecl2+2h2o fe(oh)2+2h+=fe2+ 2h2o

Fe(OH)2+2H2O+O2=4Fe(OH)3 The ionic equation is the same as the chemical equation.

10. FeCl3+3NaOH=Fe(OH)3 (precipitation)+3NaCl Fe3+ +3OH-=Fe(OH)3(precipitation)+

11、fe(oh)3+3hcl=fecl3+3h2o fe(oh)3+3h+=fe3+ +3h2o

Fe(OH)3 = Fe2O3 + 3H2O (heating).

13、fecl3+3kscn=fe(scn)3+3kcl fe3+ +3scn- =fe(scn)3

14、fe2o3+6hcl=2fecl2 +3h2o fe2o3+6h+=2fe3+ +3h2o

I can't read the serial numbers 10-14 clearly, so you can see the correct order for yourself.

You iron triangle, you can do any book you want, or you bring your mailbox and I'll send you information.

All chemical equations for iron and its compounds: 3Fe + 4H2O Fe3O4 + 4H2 . Iron is a metallic element with atomic number 26, iron elemental chemical formula: Fe, average relative atomic mass.

For. There are four stable isotopes of iron in nature, fe-54, fe-56, fe-57, and fe-58, which can be considered half-life without considering proton decay.

Infinitely long. There are also two other radioisotopes, fe-55 and fe-59, with half-lives of years and days, respectively. Pure iron is white or silvery-white with a metallic luster.

Melting point 1538, boiling point 2750, soluble in strong acid and medium strong acid, insoluble in water. Iron has a price of 0, +2, +3, and +4.

5 and +6 valence, of which +2 and +3 are more common, and +4, +5 and +6 are rare.

Iron and oxygen are burned to form ferric tetroxide, and the reaction equation is: 3Fe+2O2 ignition fe3o4；Iron reacts with chlorine to form ferric chloride by the reaction equation:

2Fe+3Cl2 ignition 2fecl3；Iron reacts with hydrochloric acid to form ferrous chloride, and the reaction equation is: Fe+2HCl=FeCl2+H2; ④

feo+2hcl=fecl2+h2o

fe2o3+6hcl=2fecl3+3h2o

fe3o4+8hcl=fecl2+2fecl3+4h2o

2fecl3+fe===3fecl2 2fecl3+cu===2fecl2+cucl2

Used for engraving copper wiring plates).

2fecl3+zn===2fecl2+zncl2 fecl3+ag===fecl2+agc

Fe2(SO4)3+2AG===FeSO4+AG2SO4 (more difficult to react).

Fe(NO3)3+AG does not react.

2fecl3+h2s===2fecl2+2hcl+s 2fecl3+2ki===2fecl2+2kcl+i2

fecl2+mg===fe+mgcl2

2. Reducibility:

2FeCl2+Cl2===2FeCl3 3Na2S+8Hno3 (dilute) ==6Nano3+2NO+3S+4H2O

4fe（oh）2+o2+2h2o===4fe（oh）3

2fecl2+cl2===2fecl3

fecl3+

6feo+o2===2fe3o4 feo+4hno3===fe(no3)3+no2+2h2o

Fe2O3+3H2===2Fe+3H2O (Reduced Iron Powder) Fe3O4+4H2===3Fe+4H2O

2fe+3br2===2febr3

fe+i2===fei2 fe+s===fes 3fe+4h2o(g)==fe3o4+4h2

fe+2hcl===fecl2+h2 fe+cucl2===fecl2+cu

Fe+SNCl4===FeCl2+SNCL2 (Iron cannot completely reduce tin tetrachloride to elemental tin Fe+SNCl2==FeCl2+SN in an acidic environment).

3fe+2o2===fe3o4

fe+h2so4 ==feso4+h2↑

fe+cuso4==feso4+cu

feo+co===fe+co2

fe2o3+3co===2fe+3co2

fe3o4+4co===3fe+4co

3Fe+4H2O=Fe3O4+4H2 Fe+2HCl=FeCl2+H2 Fe+2H+=Fe2+H2 Hail MuFeCl3+3H2O--Fe(OH)3 (colloidal infiltration)+3HCl Fe3+ +3H2O---Fe(OH) Pi Shizhi 3 (colloid) +3H+3Fe3O4+28HNO3=9Fe(NO3)3+NO3+14H2O3FE3O4+28H+ +28NO3-=9fe3+27no3-+no +14h2ocuso...

1.3Fe+4H2O Fe3O4+4H2 or 3Fe+2O2==Fe3O4 (ignited).

2.When the electrolyte film formed on the surface of steel is very weak acidic or neutral, the negative electrode is still iron that is oxidized to Fe2+, and the main reaction of the positive electrode is the reduction of electrons from the dissolved oxygen in the water film: (-Fe-2E=Fe2+ (2H2O+O2+4E=4OH- This corrosion of steel due to the dissolution of oxygen in the air is called oxygen corrosion.

The actual corrosion of metals such as steel is mainly this kind of oxygen absorption corrosion. (That's it).

3. fe+2hcl ==fecl2 + h2

4.2Fe + 3Cl2 ==2FeCl3 (ignition).

5.Fe + S ==Fes (heat).

6.Fe2O3 + 3H2 ==2Fe + 3H2O (heating).

7.Fe3O4 + 4H2 ==3Fe + 4H2O (heat).

8. fes + 2hcl ==fecl2 + h2s

9. fe3o4 + fe + 8hcl ==4fecl2 + 4h2o

10. fe2o3 + 6hcl ==2fecl3 + 3h2o

11. 2fecl2 + cl2 ==2fecl3

12. 2fecl3 + fe ==3fecl2

13. fe2+ +2oh- =fe(oh)2

14. fe(oh)2 + 2h+ =fe2+ +2h2o

15. fe3+ +3oh- =fe(oh)3

16. fe(oh)3 + 3h+ =fe3+ +3h2o

17. 4fe(oh)2 + o2 + 2h2o ==4fe(oh)3

18. fe3+ +3scn- =fe(scn)3

All chemical equations for iron and its compounds: 3Fe + 4H2O Fe3O4 + 4H2 . Iron is a metallic element with atomic number 26 and an elemental chemical formula for iron

fe, the average relative atomic mass is . There are four stable isotopes of iron in nature, fe-54, fe-56, fe-57, and fe-58, and the half-life can be considered to be infinitely long without taking into account proton decay.

There are also two other radioisotopes, fe-55 and fe-59, with half-lives of years and days, respectively. Pure iron is white or silvery-white with a metallic luster. Melting point 1538, boiling point 2750, soluble in strong acid and medium strong acid, insoluble in water.

Iron has 0, +2, +3, +4, +5 and +6 valences, of which +2 and +3 are more common, and +4, +5 and +6 are rare.

3Fe+2O2==Ignition==Fe3O4 (nonionic reaction).

3Fe + 4H2O(G) == High Temperature == Fe3O4 + 4H2 (Nonionic Reaction).

Fe+2HCl===FeCl2+H2 Fe + 2H+ ===Fe2+ +H2 (reacts with non-oxidizing acids).

fe+cucl2===fecl2+cu fe+cu2+===fe2++cu

fe+2fecl3==3fecl2 2fe3++fe=3fe2+

2Fe+3Cl2==Ignition== 2FeCl3 (nonionic reaction).

feo+2hcl==fecl2+h2o feo+2h+= fe2++h2o

Fe3O4+4CO==δ== 3Fe+4CO2 (nonionic reaction).

Fe2O3+3CO==δ== 3Fe+3CO2 (nonionic reaction).

Note: The quantitative law of the reaction between iron oxide and CO: the amount of carbon dioxide produced is equal to the number of atoms of oxygen in the oxide.