The reaction you provided is a redox reaction between aluminum (Al) and hydrochloric acid (HCl) that produces aluminum chloride (AlCl₃) and hydrogen gas (H₂).
The balanced chemical equation for this reaction is as follows:
\[ 2 \, \text{Al} + 6 \, \text{HCl} \rightarrow 2 \, \text{AlCl}_3 + 3 \, \text{H}_2 \]
Breakdown of the Redox Process:
Oxidation (Loss of Electrons):
- Aluminum (Al) is oxidized as it loses electrons.
- The oxidation half-reaction is: \[ \text{Al} \rightarrow \text{Al}^{3+} + 3 \, e^- \]
Reduction (Gain of Electrons):
- Hydrogen ions (H⁺) from hydrochloric acid are reduced to form hydrogen gas (H₂).
- The reduction half-reaction is: \[ 2 \, \text{H}^+ + 2 \, e^- \rightarrow \text{H}_2 \]
Overall Process:
- In the complete reaction, aluminum oxidizes, and hydrogen ions are reduced, resulting in the formation of aluminum chloride and hydrogen gas.
Note:
- This reaction is exothermic and should be conducted with care in a controlled environment since hydrogen gas is flammable.
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