Question

identify the option below that is a characteristic of neutral solutions.
select the correct answer below:
h3o+ > oh-
ph levels greater than 7 at 25 °c
ph levels of 7 at 25 °c
ph levels less than 7 at 25 °c

Explanation:

Step1: Recall pH scale properties

The pH scale ranges from 0 - 14. At 25 °C, acidic solutions have \(pH<7\) (because \([H_3O^{+}]>[OH^{-}]\)), basic solutions have \(pH > 7\) (because \([H_3O^{+}]<[OH^{-}]\)), and neutral solutions have \(pH = 7\) (because \([H_3O^{+}]=[OH^{-}]\)).

Step2: Analyze each option

• For \([H_3O^{+}]>[OH^{-}]\), this is characteristic of acidic solutions.
• For \(pH>7\) at \(25^{\circ}C\), this is characteristic of basic solutions.
• For \(pH = 7\) at \(25^{\circ}C\), this is the definition of a neutral solution.
• For \(pH<7\) at \(25^{\circ}C\), this is characteristic of acidic solutions.

Answer:

pH levels of 7 at 25 °C