Question

what is a pH scale? describe.

Answer 1

pH stand for power of hydrogen. which detect the any substances how much salt how much acid how much base.
if the pH value if the pH value of the any substances is less than 7 it will be the acid in the pH value of any substances is a greater than 7 it must be a base or if the pH value of of any substances is equal to 7 then it must to be salt

Answer 2

The pH scale measures how acidic or basic of a substance is. The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than is basic