Question

Al → Al2O3 → AlCl3 → Al(OH)3 → Al(NO3)3 → Al(OH)3

Answer 1

Ответ:

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Answer 2

The series of chemical reactions you provided involves the transformation of aluminum (Al) through several compounds. Let's go through each step:

1. Al → Al2O3: This reaction represents the formation of aluminum oxide (Al2O3) from elemental aluminum. It occurs when aluminum is exposed to oxygen in the air or in a controlled environment. The balanced equation for this reaction is:

2 Al + 3 O2 → 2 Al2O3

2. Al2O3 → AlCl3: The next step involves the reaction of aluminum oxide (Al2O3) with chlorine gas (Cl2) to form aluminum chloride (AlCl3). The balanced equation for this reaction is:

Al2O3 + 6 HCl → 2 AlCl3 + 3 H2O

3. AlCl3 → Al(OH)3: In this step, aluminum chloride (AlCl3) reacts with water (H2O) to form aluminum hydroxide (Al(OH)3). The balanced equation for this reaction is:

AlCl3 + 3 H2O → Al(OH)3 + 3 HCl

4. Al(OH)3 → Al(NO3)3: The next transformation involves the reaction of aluminum hydroxide (Al(OH)3) with nitric acid (HNO3) to produce aluminum nitrate (Al(NO3)3). The balanced equation for this reaction is:

Al(OH)3 + 3 HNO3 → Al(NO3)3 + 3 H2O

5. Al(NO3)3 → Al(OH)3: Lastly, aluminum nitrate (Al(NO3)3) can undergo hydrolysis when exposed to water, forming aluminum hydroxide (Al(OH)3) again. The balanced equation for this reaction is:

Al(NO3)3 + 3 H2O → Al(OH)3 + 3 HNO3

Overall, the series of reactions you provided represents the transformation of aluminum (Al) through aluminum oxide (Al2O3), aluminum chloride (AlCl3), aluminum hydroxide (Al(OH)3), aluminum nitrate (Al(NO3)3), and back to aluminum hydroxide (Al(OH)3) again.