Which of the following statements about the ph scale is true?

a. acids, which have lower concentrations of hydronium ions than bases, are found from 14 and down to 7.
b. acids, which have higher concentrations of hydronium ions than bases, are found from 0 and up to 7.
c. bases, which have higher concentrations of hydronium ions than acids, are found from 14 and down to 7.
d. bases, which have higher concentrations of hydronium ions than acids, are found from 0 and up to 7.

Option (C) is the correct answer.

Explanation:

Substances which are acidic in nature have pH less than 7 whereas substances which are basic in nature have pH more than 7.

On the other hand, substances which have pH equal to 7 are neutral in nature.

An acidic substance will have more number of hydrogen ions whereas a basic substance will have more number of hydronium ions.

Therefore, we can conclude that the statement bases, which have higher concentrations of hydronium ions than acids, are found from 14 and down to 7, is true.

it means there are 3 atoms of oxygen