Answer:
The answer to your question is below.
Explanation:
a) pH is a scale to measure the acidity or basicity of a solution. It goes from 0 to 14. Acid solutions have a lower pH than basic solutions.
Then, the 2 M acid solution has a lower pH
b) Hydronium ions are represented by [H₃O⁺] and are characteristic of acids. So the concentration is higher in the solution 2 M of an acid.
c) Also, the answer is the 2 M solution of an acid.