Question

Al2O3+HCl - окислительно восстановительная реакция?Или Al+HCl?

Answer 1

Al2(+3)O3(-2) + 6H(+)Cl(-) --> 2Al(+3)Cl3(-) + 3H2(+)O(-2)
Степень окисления ни одного из элементов не поменялась. Это не окислительно-восстановительная реакция.

2Al(0) + 6H(+)Cl(-) --> 2Al(+3)Cl3(-) + 3H2(0)
Al(0) -3e  --> Al(+3)
2H(+) +2e --> H2(0)
Степени окисления Алюминия и Водорода поменялись. Это О.В.Р.

Answer 2

Reaction of Al2O3 with HCl

When aluminum oxide (Al2O3) reacts with hydrochloric acid (HCl), it undergoes a reaction that can be classified as an acid-base reaction. The balanced chemical equation for the reaction is:

Al2O3 + 6 HCl → 2 AlCl3 + 3 H2O This reaction involves the formation of aluminum chloride (AlCl3) and water (H2O) as products. The aluminum oxide acts as a base, while the hydrochloric acid acts as an acid in this reaction.

The reaction can be further understood by considering the Lewis acid-base theory, where the aluminum oxide, as a metal oxide, acts as a Lewis base by donating electron pairs to the hydrogen ions from hydrochloric acid, which act as Lewis acids. This results in the formation of aluminum chloride and water as the products.

In summary, the reaction of aluminum oxide with hydrochloric acid results in the formation of aluminum chloride and water, and it can be classified as an acid-base reaction.

If you have any more questions or need further clarification, feel free to ask!