Based on your understanding of the pH scale, which of the following statements are TRUE? (Mark all the statements that are true)
A.
A neutral pH of 7 indicates that the concentration of (H+) ions is equal to the concentration of (OH-) ions.
B.
The lower the pH, the higher the concentration of (OH-) ions compared to the concentration of (H+) ions.
C.
The pH of an unknown solution changed from pH 5 to pH 4. This means that the concentration of (H+) ions increased by ten times.
D.
The lower the pH, the more acidic the solution.
E.
Seawater is an acid.
F.
The pH of seawater would become more acidic if the concentration of (H+) ions increased.
G.
The pH of seawater since the Industrial Revolution has changed from 8.2 to 8.1. This means the concentration of (H+) ions has decreased.