Be sure to answer all parts. Classify each of the following as either a Brønsted-Lowry acid, base, or as amphiprotic.H3O+

1. Break Down the Problem

To classify H₃O⁺, we need to review the definitions of Brønsted-Lowry acids, bases, and amphiprotic substances.

2. Relevant Concepts

• Brønsted-Lowry Acid: A substance that donates a proton (H⁺).
• Brønsted-Lowry Base: A substance that accepts a proton (H⁺).
• Amphiprotic Substance: A substance that can either donate or accept a proton.

3. Analysis and Detail

H₃O⁺, known as the hydronium ion, is formed when water (H₂O) accepts a proton (H⁺). In this context, H₃O⁺ can donate a proton to become H₂O, thus acting as an acid. It can also react with a base to accept a proton.

4. Verify and Summarize

Given that H₃O⁺ can both donate a proton (acting as an acid) and is the result of a protonation reaction, but primarily functions as a proton donor in aqueous solutions, it is best classified as:

Final Answer

H₃O⁺ is classified as a Brønsted-Lowry acid.