Answer: option E) ) the pond is now pH neutral and it has more hydrogen ions than at pH 7.5
Explanation:
A pH reading of 7.0 is said to be neutral, so the pond after the chemical treatment is neutral in pH.
Also, the pond now has more hydrogen ions than at pH 7.5, because
- a pH value of 7.5 is slightly more alkaline than a pH value of 7.0; and the lower the pH value of the pond, the higher the hydrogen ions concentration viz a viz
Thus, at pH 7.0 there are more hydrogen ions than at pH 7.5.