* Sodium hydroxide (NaOH), also known as lye, is a strong base and has a very high pH.
* Potassium hydroxide (KOH) is another strong base with a high pH.
* Ammonia (NH3) is a weak base, but its solutions still have a pH greater than 7.
* Calcium hydroxide (Ca(OH)2), also known as slaked lime, is a base used in many applications.
* Sodium bicarbonate (NaHCO3), or baking soda, is a weak base and has a pH around 8.3.
* Many household cleaners contain basic chemicals like ammonia or sodium hydroxide to make them effective.
* Antacids are bases that neutralize stomach acid, which is acidic.
Remember:
* The pH scale ranges from 0 to 14.
* A pH of 7 is neutral (like pure water).
* Solutions with a pH greater than 7 are basic.
* Solutions with a pH less than 7 are acidic.
It's important to note that the specific pH of a solution depends on its concentration. For example, a dilute solution of sodium hydroxide will have a lower pH than a concentrated solution.
