Question

1. acids have a ph value ____ than 7.
2. bases have a ph value ____ than 7.
3. what is the ph scale based on?
4. ph stands for the potential of hydrogen. true false
5. which number on the ph scale is neutral? a) 0 b) 7 c) 14

Explanation:

1. Acids have a lower pH than 7 based on the pH - scale definition.
2. Bases have a higher pH than 7 as per the pH - scale rules.
3. The pH scale is based on the concentration of hydrogen ions ($H^+$) in a solution.
4. pH indeed stands for the potential of hydrogen.
5. On the pH scale, 7 is neutral.

Answer:

1. lower
2. higher
3. The concentration of hydrogen ions ($H^+$) in a solution.
4. True
5. B. 7