Question

How does the presence of an acid in a water solution affect the pH of the solution?

It lowers the pH.
It does not affect the pH.
It raises the pH.
It neutralizes the pH.

Answer 1

the effect is: it lowers the pH.

Answer 2

It lowers the pH.

Step-by-step explanation:

pH (or hydrogen potential) is a value that indicates the concentration of hydrogen ions (H⁺), which shows whether a substance is acidic, neutral or alkaline.

These values ​​generally range from 0 to 14, with substances having a pH of 0 to 7 considered acidic, those with 7 considered neutral, and those having values ​​above 7 are alkaline.

Thus, the lower the pH of a substance, the higher the concentration of ions H⁺ and therefore the more acidic it will be. So, the addition of an acidic substance to a compound implies a reduction in pH.