Question

1. name the acid or base for label a. 19) name the acid or base for label c. 20) name the acid or base for label b. 21) name the acid or base for label d. 22) identify all the substances that are acidic a) tomatoes (ph = 4) b) cola drinks (ph = 3) c) oven cleaner (ph = 14) d) vinegar (ph = 5.6) e) toothpaste (ph = 9)

Explanation:

Step1: Recall pH - scale properties

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

Step2: Analyze each option for question 22

A) Tomatoes with pH = 4. Since 4<7, tomatoes are acidic.
B) Cola drinks with pH = 3. Since 3<7, cola drinks are acidic.
C) Oven - cleaner with pH = 14. Since 14>7, oven - cleaner is basic.
D) Vinegar with pH = 5.6. Since 5.6<7, vinegar is acidic.
E) Toothpaste with pH = 9. Since 9>7, toothpaste is basic.

Answer:

A) tomatoes (pH = 4)
B) cola drinks (pH = 3)
D) vinegar (pH = 5.6)