Question

the ph scale is used to tell if a substance is an acid or base. substances with a ph of 7 are neutral. an acid is anything below 7 and a base is anything above 7. if a certain substance has a ph of 3, what type of substance is it?

Explanation:

Step1: Recall pH - scale rules

Substances with pH < 7 are acids, pH = 7 are neutral, and pH > 7 are bases.

Step2: Compare given pH value

The given pH is 3, and 3 < 7.

Answer:

B. acid