Question

Which list of properties would help a student identify common household substances that are acids?
A.
no odor, doesn’t react with other substances, pH of 7
B.
slight odor, doesn’t react with other substances, pH of 10
C.
strong odor, reactive with other substances, pH of 3
D.
no odor, reactive with other substances, pH of 5

Answer 1

To identify common household substances that are acids, the properties that would be the most indicative are:

C. strong odor, reactive with other substances, pH of 3

This option specifies a low pH (which is typical of acids), is reactive (another characteristic of acids), and the presence of a strong odor may point toward common acidic substances like vinegar (acetic acid) or lemon juice (citric acid).