2Al(s) + 6HCl(aq) → 2AlCl₃(aq) + 3H₂(g)
Here's a breakdown of the reaction:
* 2Al(s): This represents two moles of solid aluminum.
* 6HCl(aq): This represents six moles of hydrochloric acid in an aqueous solution.
* 2AlCl₃(aq): This represents two moles of aluminum chloride, which dissolves in the solution.
* 3H₂(g): This represents three moles of hydrogen gas, which is released as bubbles.
Explanation:
This reaction is a single displacement reaction where aluminum (Al) is more reactive than hydrogen (H). The aluminum displaces the hydrogen from the hydrochloric acid, forming aluminum chloride (AlCl₃) and releasing hydrogen gas (H₂).
This reaction is also exothermic, meaning it releases heat and can be observed by the evolution of heat and the formation of bubbles.
