* The pH Scale: The pH scale measures acidity and alkalinity. A pH of 7 is neutral. Anything below 7 is acidic, and anything above 7 is alkaline (or basic).
* Most Substances Have a pH: Most substances have a pH, even if it's very slightly acidic or basic.
* Examples:
* Pure water is considered neutral with a pH of 7.
* Salt (sodium chloride) is also neutral.
* Many organic compounds, like sugar, can be considered neutral in terms of their everyday impact.
It's more accurate to say that a substance is "neutral" rather than "no acid and no alkali".
Let me know if you have any other chemistry questions!
