Question

Fe2O3- Fe- FeCl3- Fe(OH)3- Fe3+ - FePo4

Answer 1

Fe2O3 + 3C (t)= 2Fe + 3CO

2Fe + 3Cl2 = 2FeCl3

FeCl3 + 3NaOH = Fe(OH)3 + 3NaCl

Fe(OH)3 + 3HNO3 = Fe(NO3)3 + 3H2O

Fe(NO3)3 + H3PO4 = FePO4 + 3HNO3

Answer 2

The series of compounds you provided represents a chemical reaction starting with Fe2O3 (iron(III) oxide) and ending with FePO4 (iron(III) phosphate). Let's break down the reaction steps:

1. Fe2O3: This is iron(III) oxide, a compound made up of two iron atoms bonded to three oxygen atoms.

2. Fe: In the reaction, Fe2O3 is reduced to Fe, meaning it loses oxygen atoms and becomes elemental iron.

3. FeCl3: Elemental iron (Fe) reacts with chlorine gas (Cl2) to form iron(III) chloride (FeCl3). This is an ionic compound where iron has a +3 charge.

4. Fe(OH)3: Iron(III) chloride (FeCl3) reacts with water (H2O), and the iron cations (Fe3+) bond with hydroxide ions (OH-) to form iron(III) hydroxide (Fe(OH)3).

5. Fe3+: Iron(III) hydroxide (Fe(OH)3) can dissociate in water, releasing iron(III) ions (Fe3+). These ions have a +3 charge and are responsible for the reddish-brown color seen in rusted iron.

6. FePO4: Iron(III) ions (Fe3+) react with phosphate ions (PO4^3-) to form iron(III) phosphate (FePO4). This is an ionic compound with iron in the +3 oxidation state.

Overall, the reaction sequence can be summarized as follows:

Fe2O3 + Cl2 + H2O → FeCl3 + H2O → Fe(OH)3 → Fe3+ + PO4^3- → FePO4