Question

1) Fe - > Fe(OH)3 - > Fe(No3)3 - > FeCl3 -> Fe2(So4)3 2) CaCO3 - > Ca(Hco3)2 -> CaCl2 - > Ca(NO3)2 - > O2

Answer 1

Fe + O2 + H2O → Fe2O3 · xH2O

Fe2O3 + 6HCl = 2FeCl3 + 3H2O

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

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

Fe(NO3)3 + 3NaOH = Fe(OH)3 + 3NaNO3

2Fe(OH)3 + 6HCl = 2FeCl3 + 6H2O

2FeCl3 + 3H2SO4 = Fe2(SO4)3 + 6HCl

CaCO3 + H2O + CO2 = Ca(HCO3)2

Ca(HCO3)2 + 2HCl = CaCl2 + 2H2O + CO2

CaCl2 + 2AgNO3 = 2AgCl + Ca(NO3)2

2Ca(NO3)2 (560C°+) = 2CaO + 4NO2 + O2 

Answer 2

It appears that you've listed two chemical reactions or sequences of reactions. However, there seem to be some mistakes in the chemical formulas. Let me correct and interpret the reactions for you:

1. Fe -> Fe(OH)3 -> Fe(NO3)3 -> FeCl3 -> Fe2(SO4)3

Interpretation:

• Fe: This represents iron in its elemental form.
• Fe(OH)3: Iron(III) hydroxide, a compound formed when iron reacts with hydroxide ions (OH^-).
• Fe(NO3)3: Iron(III) nitrate, a compound formed when iron(III) hydroxide reacts with nitric acid (HNO3).
• FeCl3: Iron(III) chloride, a compound formed when iron(III) nitrate reacts with hydrochloric acid (HCl).
• Fe2(SO4)3: Iron(III) sulfate, a compound formed when iron(III) chloride reacts with sulfuric acid (H2SO4).

2. CaCO3 -> Ca(HCO3)2 -> CaCl2 -> Ca(NO3)2 -> O2

Interpretation:

• CaCO3: Calcium carbonate, a compound commonly found in limestone and marble.
• Ca(HCO3)2: Calcium bicarbonate, a compound formed when calcium carbonate reacts with carbonic acid (H2CO3).
• CaCl2: Calcium chloride, a compound formed when calcium bicarbonate reacts with hydrochloric acid (HCl).
• Ca(NO3)2: Calcium nitrate, a compound formed when calcium chloride reacts with nitric acid (HNO3).
• O2: Oxygen gas, which is typically released in various chemical reactions.

Please note that these reactions are hypothetical and might not necessarily represent real-world chemical reactions. Also, the specific reaction conditions and stoichiometry are not provided, so the actual products might differ depending on the reaction conditions. If you have any other questions or need further clarification, feel free to ask!