If it's added to tap water, maybe and maybe not. If it's added to distilled water, the answer is yes.
sodium hydroxide solution
No. Sodium hydroxide releases hydroxide ions, which actually take protons out of the solution. This qualifies sodium hydroxide as a base.
No reaction takes place. pH of the solution increase.
Nothing
Metallic copper does not react with sodium hydroxide. But if sodium hydroxide is added into a solution of copper ions, it would form Copper(II) Hydroxide. It is a precipitate which is insoluble in water.
anything important
Acetic acid is added to the solution, but the pH of the solution does not change. Sodium hydroxide, a base, is added to the solution, but the pH of the solution does not change.
sodium hydroxide, a base, is added to the solution, but the pH of the solution does not change.
It Turns Pink.
Sodium hydroxide simply becomes ionized in water, no reaction will occur. And the concentration of NaOH will be reduced, if enough water is added.
There are times when bacteria, acidify an infected site, therefore adding sodium hydroxide will neutralize the region for a basic site.
Copper metal itself does not react with sodium hydroxide. But when NaOH is added to a solution of copper ions, it would form a light blue precipitate, which is copper(II) hydroxide, and will NOT dissolve with the excess alkali.