* Acids release hydrogen ions (H+) in solution.
* Hydroxide ions (OH-) are the defining characteristic of bases.
* Hydrogen ions and hydroxide ions react to form water (H2O), which is neutral.
The reaction:
H+ (from acid) + OH- (from base) → H2O
This reaction effectively removes the excess hydroxide ions, making the solution less basic.
Example:
If you have a solution of sodium hydroxide (NaOH), a strong base, you can add an acid like hydrochloric acid (HCl) to neutralize it. The reaction produces sodium chloride (NaCl), a salt, and water:
NaOH + HCl → NaCl + H2O
In summary:
* Acids are used to neutralize excess hydroxide ions (bases).
* The reaction forms water and neutralizes the solution.
* Salts are often formed as a byproduct of the neutralization reaction.
