Final answer:
Among the listed chemicals, Water (H2O) is not acidic; it is neutral with a pH of 7. The other substances, Hydrochloric acid (HCl), Sulfuric acid (H2SO4), and Nitric acid (HNO3), are all strong acids.
Step-by-step explanation:
Out of the given chemicals, water is not acidic. Water (H2O) is a neutral compound that has a pH of 7, indicating that it is neither acidic nor basic. Hydrochloric acid (HCl), sulfuric acid (H2SO4), and nitric acid (HNO3) are all examples of strong acids.
The question asks which of the following chemicals are not acidic: 1) Hydrochloric acid, 2) Sulfuric acid, 3) Nitric acid, 4) Water. Hydrochloric acid (HCl), Sulfuric acid (H₂SO₄), and Nitric acid (HNO₃) are all examples of strong acids with well-known acidic properties. On the other hand, Water (H₂O) is not an acid; it is a neutral substance with a pH of 7 under standard conditions. Water can behave as an acid or a base depending on the context, but it is not considered acidic when compared to the other substances listed.