Avery acidic ph level is and a very basic ph level is

Answer;

1; 13

A very acidic pH level is 1, and a very basic pH level is 13.

Explanation;Acids are substances that produces a hydronium ion (H3O+) when it is dissolved in water while a base is a substance produces hydroxide ions when it is dissolved in water. The pH is an inverse measure of the concentration of hydronium ions in a solution. A solution that has a lower pH is more acidic than a solution that has higher pH while a solution that has a higher pH is more basic that a solution that has a lower pH. A solution with a pH of 7 is neutral while a solution with a pH lower than 7 is acidic, with 1 being the most acidic and 6 the least acidic. A solution with a pH higher than 7 is basic, with 8 being the least basic and 13 being the most basic.