Here's why:
* pH scale: The pH scale measures the acidity or alkalinity of a solution. It ranges from 0 to 14, with 7 being neutral.
* Hydrogen ions: Acids release hydrogen ions (H+) into solution. The more hydrogen ions present, the more acidic the solution and the lower the pH.
* Hydroxide ions: Bases (alkalines) release hydroxide ions (OH-) into solution. These ions react with hydrogen ions, decreasing their concentration and increasing the pH.
In summary: The higher the concentration of hydrogen ions (H+), the lower the pH, indicating a more acidic solution. The lower the concentration of hydrogen ions (H+), the higher the pH, indicating a more alkaline solution.
