Question

saliva ph=7 acidic neutral basic shampoo ph=7 acidic neutral basic stomach acid ph= acidic neutral basic vinegar ph= acidic neutral basic water (distilled) ph= acidic neutral water (ocean) ph= acidic neutral basic

Explanation:

Step1: Recall pH scale rules

pH < 7 = acidic; pH = 7 = neutral; pH > 7 = basic

Step2: Assign Stomach Acid values

Stomach acid is strongly acidic, typical pH $\approx 1$

Step3: Assign Vinegar values

Vinegar is acidic, typical pH $\approx 3$

Step4: Assign distilled water values

Distilled water is neutral, pH $= 7$

Step5: Assign ocean water values

Ocean water is slightly basic, typical pH $\approx 8$

Answer:

Substance	pH Value	Classification
Shampoo	7	Neutral
Stomach Acid	1	Acidic
Vinegar	3	Acidic
Water (distilled)	7	Neutral
Water (ocean)	8	Basic