Write the reaction equations: Al → AlCl3 → Al (OH) 3 → Al2O3 → Al (NO3) 3 → Al (OH) 3

To carry out the above chain of transformations, it is necessary to carry out the following reactions:

The reaction is the interaction of aluminum and oxygen, as a result of the reaction, aluminum oxide is formed.

4 Al + 3 O2 = 2 Al2O3

The reaction is the interaction of aluminum oxide and hydrochloric acid, as a result of the reaction, aluminum chloride and water are formed.

Al2O3 + 6 HCl = 2 AlCl3 + 3 H2O

The reaction is the interaction of aluminum chloride and sodium hydroxide, as a result of the reaction, sodium chloride and aluminum hydroxide are formed.

AlCl3 + 3 NaOH = Al (OH) 3+ 3 NaCl

The reaction is the interaction of aluminum hydroxide and nitric acid, as a result of the reaction, aluminum nitrate and water are formed.

Al (OH) 3 + 3 HNO3 = Al (NO3) 3 + 3 H2O.



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