Question

Al-Al2O3-Al2(SO4)3-AlCl3-Al(OH)3-Al2O3

Answer 1

Ответ:

Al→Al₂O₃→Al₂(SO₄)₃→AlCl₃→Al(OH)₃→Al₂O₃

4Al+3O₂=2Al₂O₃

Al₂O₃+3H₂SO₄=Al₂(SO₄)₃+3H₂O

Al₂(SO₄)₃+3BaCI₂=2AlCl₃+3BaSO₄↓

AlCl₃+3NaOH=Al(OH)₃↓+3NaCI

2Al(OH)₃+t°C=Al₂O₃+3H₂O

Answer 2

The sequence of compounds you provided is as follows:

1. Al: Aluminum (elemental form)
2. Al2O3: Aluminum oxide (also known as alumina)
3. Al2(SO4)3: Aluminum sulfate
4. AlCl3: Aluminum chloride
5. Al(OH)3: Aluminum hydroxide

Aluminum (Al) is a chemical element with the atomic number 13. It is a silvery-white metal and the third most abundant element in the Earth's crust. Aluminum is highly reactive and readily forms compounds with various elements.

Aluminum oxide (Al2O3), also known as alumina, is a compound that occurs naturally as the mineral corundum. It is a white crystalline solid and is commonly used in the production of aluminum metal, as a refractory material, and in various other applications.

Aluminum sulfate (Al2(SO4)3) is a compound formed by the reaction of aluminum oxide with sulfuric acid. It is commonly used in water treatment processes, as a mordant in dyeing and printing textiles, and in paper manufacturing.

Aluminum chloride (AlCl3) is a compound that is typically prepared by the reaction of aluminum metal with chlorine gas. It is a white solid with a strong, pungent odor and is widely used as a catalyst in organic synthesis and as a component in various chemical processes.

Aluminum hydroxide (Al(OH)3) is a compound that forms when aluminum metal reacts with water or hydroxide ions. It is a white gelatinous solid and is commonly used as an antacid to relieve symptoms of indigestion and heartburn.

Al2O3 (aluminum oxide) is also present in the sequence, which was previously discussed as alumina. It is a common compound with various industrial applications, including as a catalyst support, as an abrasive, and in the production of ceramics.

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