Question

There are acid-base theories that define an acid as any species that ____________?

1) donates a proton
2) donates an electron
3) accepts a proton

Answer 1

In chemistry, acids and bases can be defined by different theories. The Arrhenius definition focuses on ionization, while the Brønsted-Lowry definition centers on proton transfer. The Lewis theory considers electron pair donation and acceptance.

Step-by-step explanation:

In chemistry, acids and bases have been defined differently by three sets of theories. One is the Arrhenius definition which states that acids are substances that ionize in an aqueous solution to produce hydrogen ions (H+) while bases produce hydroxide ions (OH-) in solution.

The Brønsted-Lowry definition defines acids as substances that donate protons (H+) and bases as substances that accept protons. Finally, the Lewis theory of acids and bases states that acids are electron pair acceptors while bases are electron pair donors.