Question

3. Виконати перетворення: а) Cl2 → HCl →FeCl3 → Fe(OH)3 → Fe2O3 → Fe б) Ca → Ca(OH)2 → CaCO3 → CaO → CaCl2 → Ca

Answer 1

Ответ:

CL2+H2-->2HCL

6HCL+2Fe-->2FeCL3+3H2

FeCL3+3NaOH-->Fe(OH)3+3NaCL

2Fe(OH)3-->Fe2O3+H2O

Fe2O3+3H2-->2Fe+3H2O

Ca+2HOH-->Ca(OH)2+H2

Ca(OH)2+Na2CO3-->CaCO3+2NaOH

CaCO3-->CaO+CO2

CaO+2HCL-->CaCL2+H2O

CaCL2+H2-->Ca+2HCL

Объяснение:

Answer 2

а) Cl2 → HCl → FeCl3 → Fe(OH)3 → Fe2O3 → Fe

1. Cl2 (Chlorine gas) → 2 HCl (Hydrogen chloride gas) (The reaction is a redox reaction, where chlorine is reduced to hydrogen chloride.)

2. 6 HCl (Hydrogen chloride gas) + 2 Fe (Iron solid) → 2 FeCl3 (Ferric chloride) + 3 H2 (Hydrogen gas) (This is a single replacement reaction, where iron displaces hydrogen from hydrochloric acid.)

3. 2 FeCl3 (Ferric chloride) + 6 NaOH (Sodium hydroxide) → 2 Fe(OH)3 (Ferric hydroxide) + 6 NaCl (Sodium chloride) (This is a double replacement reaction, where iron chloride reacts with sodium hydroxide to form ferric hydroxide and sodium chloride.)

4. 2 Fe(OH)3 (Ferric hydroxide) → Fe2O3 (Iron(III) oxide) + 3 H2O (Water) (Ferric hydroxide undergoes dehydration to form iron(III) oxide and water.)

5. Fe2O3 (Iron(III) oxide) → 2 Fe (Iron solid) + 3/2 O2 (Oxygen gas) (This is a reduction reaction, where iron(III) oxide is reduced to elemental iron.)

б) Ca → Ca(OH)2 → CaCO3 → CaO → CaCl2 → Ca

1. Ca (Calcium solid) + 2 H2O (Water) → Ca(OH)2 (Calcium hydroxide) + H2 (Hydrogen gas) (This is a single replacement reaction, where calcium reacts with water to form calcium hydroxide and hydrogen gas.)

2. Ca(OH)2 (Calcium hydroxide) + CO2 (Carbon dioxide) → CaCO3 (Calcium carbonate) + H2O (Water) (This is a double replacement reaction, where calcium hydroxide reacts with carbon dioxide to form calcium carbonate and water.)

3. CaCO3 (Calcium carbonate) → CaO (Calcium oxide) + CO2 (Carbon dioxide) (Calcium carbonate undergoes thermal decomposition to form calcium oxide and carbon dioxide.)

4. CaO (Calcium oxide) + 2 HCl (Hydrogen chloride gas) → CaCl2 (Calcium chloride) + H2O (Water) (This is a double replacement reaction, where calcium oxide reacts with hydrogen chloride to form calcium chloride and water.)

5. CaCl2 (Calcium chloride) + H2O (Water) → Ca(OH)2 (Calcium hydroxide) + 2 HCl (Hydrogen chloride gas) (This is a double replacement reaction, where calcium chloride reacts with water to reform calcium hydroxide and release hydrogen chloride.)

6. Ca(OH)2 (Calcium hydroxide) → Ca (Calcium solid) + 2 H2O (Water) (Calcium hydroxide undergoes thermal decomposition to form calcium and water.)

Please note that chemical reactions can be sensitive to reaction conditions, and these equations represent the idealized conversions. Also, some reactions may require specific catalysts or different conditions to occur efficiently.