Question

A)Fe-> Fe2O3-> FeCl3-> Fe (OH)3-> Fe2(SO4)3 b) C->CO2-> H2CO3-> CaO

Answer 1

4Fe+3O2=2Fe2O3
Fe2O3+6HCl=2FeCl3+3H2O
FeCl3+3NaOH=Fe(OH)3+3NaCl
2Fe(OH)3+3H2SO4=Fe2(SO4)3+6H2O

C+O2=CO2
CO2+H2O=H2CO3
H2CO3+Ca(OH)2=CaCO3+2H2O
CaCO3=t=CaO+CO2

Answer 2

Reaction A: Fe -> Fe2O3 -> FeCl3 -> Fe(OH)3 -> Fe2(SO4)3

The reaction sequence you provided involves the transformation of iron (Fe) into various compounds. Let's break down the reaction steps:

1. Fe -> Fe2O3: Iron reacts with oxygen to form iron(III) oxide (Fe2O3).

2. Fe2O3 -> FeCl3: Iron(III) oxide reacts with hydrochloric acid (HCl) to produce iron(III) chloride (FeCl3).

3. FeCl3 -> Fe(OH)3: Iron(III) chloride reacts with a base, such as sodium hydroxide (NaOH), to form iron(III) hydroxide (Fe(OH)3).

4. Fe(OH)3 -> Fe2(SO4)3: Iron(III) hydroxide can react with sulfuric acid (H2SO4) to produce iron(III) sulfate (Fe2(SO4)3).

Please note that the reactions mentioned above are simplified representations and may involve specific reaction conditions, stoichiometry, and catalysts that are not explicitly mentioned.

Reaction B: C -> CO2 -> H2CO3 -> CaO

The reaction sequence you provided involves the transformation of carbon (C) into various compounds. Let's break down the reaction steps:

1. C -> CO2: Carbon reacts with oxygen to form carbon dioxide (CO2).

2. CO2 -> H2CO3: Carbon dioxide can dissolve in water to form carbonic acid (H2CO3).

3. H2CO3 -> CaO: Carbonic acid can react with calcium oxide (CaO) to produce calcium carbonate (CaCO3).

Again, please note that the reactions mentioned above are simplified representations and may involve specific reaction conditions, stoichiometry, and catalysts that are not explicitly mentioned.

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