Question

Complete the sentence. The lower the hydrogen ion concentration, the ______ the pH.

higher
lower
closer to 7
closer to 0

Answer 1

Your correct answer would be higher

The lower the hydrogen ion concentration, the higher the pH.

Hope this helps! :3

Answer 2

The answer is higher, because the more H+ ions there are, the more acidic the solution is, and the lower the ph it will have.