Any pH value above 7.0 is that of a base. Below that value is the pH of an acid.
Answer : The number represents a basic pH is, 9
pH : It is defined as the negative logarithm of hydrogen ion and hydronium ion concentration.
The pH range is, 1 to 14.
When the value of pH is less than 7 then the solution is acidic.
When the value of pH is more than 7 then the solution is basic.
When the value of pH is equal to 7 then the solution is neutral.
From the given information we conclude that, the pH = 4 is an acidic because the value of pH is less than 7 and pH = 9 is a basic because the value of pH is more than 7.
Hence, the number represents a basic pH is, 9
The number that represent a basic PH is 9
ExplanationThe PH scale measures how acidic or basic a substance is. It ranges from 0-14. A PH of 7 is neutral.PH value of acidic substance is below PH of 7,while PH value of Basic substance is above PH of 7.
Therefore PH of 9 represent Basic PH since it is above a PH of 7.
its 9 i got it right on my test.