Question

12.) which of the following does ph not measure? *
the acidity of a substance.
the number of electrons in a substance.
the number of hydrogen ions in a substance.
13.) which number would indicate an acidic substance? *
1
7
10
14

Explanation:

1. pH is a measure of the acidity or basicity of a solution, related to the concentration of hydrogen ions. It does not measure the number of electrons in a substance.
2. On the pH - scale, values less than 7 indicate acidic substances. A pH of 1 is acidic, while 7 is neutral, and values greater than 7 (such as 10 and 14) are basic.

Answer:

1. The number of electrons in a substance
2. 1