Question #47ca5

1 Answer
Saliha · Stefan V.
Oct 25, 2017

#9# represents a basic pH at room temperature.

Explanation:

Because at room temperature, on the pH scale, substances having pH = 7 belong to the neutral class.

The ones having pH below 7 are called acids.
The ones having pH above 7 are called bases.

https://en.wikipedia.org/wiki/PH

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