Question

Fe→FeCl3→Fe(OH)3→FeBr3→Fe(OH)3→Fe2 O3

Answer 1

2Fe+3Cl2=2FeCl3

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

Fe(OH)3+3HBr=FeBr3+3H2O

2FeBr3+3Na2CO3+3H2O=2Fe(OH)3+3CO2+6NaBr

2Fe(OH)3=высокая температура=Fe2O3+3H2O

Answer 2

The chemical reactions you've listed seem to represent the transformation of iron (Fe) through various chemical compounds. Let's go through each step:

1. Fe → FeCl3: This represents the reaction between iron (Fe) and chlorine gas (Cl2) to form iron(III) chloride (FeCl3).
2. FeCl3 → Fe(OH)3: This could be the reaction of iron(III) chloride (FeCl3) with a base (such as sodium hydroxide, NaOH) to form iron(III) hydroxide (Fe(OH)3).
3. Fe(OH)3 → FeBr3: This might represent the reaction between iron(III) hydroxide (Fe(OH)3) and bromine gas (Br2) to form iron(III) bromide (FeBr3).
4. FeBr3 → Fe(OH)3: This appears to be a reversal of the previous step, where iron(III) bromide (FeBr3) reacts with a base to reform iron(III) hydroxide (Fe(OH)3).
5. Fe(OH)3 → Fe2O3: This could be the dehydration or thermal decomposition of iron(III) hydroxide (Fe(OH)3) to form iron(III) oxide (Fe2O3), also known as ferric oxide or hematite.

The overall reaction sequence would be:

Fe + Cl2 → FeCl3 + NaOH → Fe(OH)3 + Br2 → FeBr3 + NaOH → Fe(OH)3 → Fe2O3

Please note that the reactions above are hypothetical and may not be accurate or practical without specific conditions and reactants. Additionally, it's essential to balance chemical equations properly, which is not done in the sequence you've provided. If you intend to perform any chemical reactions, always do so with proper knowledge and under appropriate laboratory conditions.