Conservation, because you are conserving natural resources(water) and reusing aluminum cans which help the environment. Hope this helps!
Answer:
A chemical change has occurred, with energy being given off.
Explanation:
The liquids mix and the stick gives off energy in light form
Some of the NH₄+ will combine with the OH- and shift the equilibrium backwards and from NH₄OH to balance the change produced by addition of NH₄+ ions.
U must burn it
or
Make it under go chemical treatment
