Answer: The pH decreases
Explanation:
- Hydrochloric acid, as an acid has a pH value below 7
- Sodium hydroxide, as an alkali has a pH value above 7.
The alkali neutralizes the acid to give a salt as in the equation:
HCl(aq) + NaOH(aq) --> NaCl(aq) + H2O(l)
Hence, the aqeous sodium chloride, NaCl has a pH value of 7 (neutral) which is then a decrease from the above 7 pH value of the sodium hydroxide solution.
Thus, the pH decreases
