Final answer:
An Arrhenius base reacts with an Arrhenius acid to produce water and a salt. This reaction is known as neutralization, where hydrogen ions from the acid combine with hydroxide ions from the base, resulting in water and salt.
Step-by-step explanation:
According to the Arrhenius Theory, a base reacts with an acid to produce water and a salt. Specifically, an Arrhenius acid is a substance that produces hydrogen ions (H+) when dissolved in water, whereas an Arrhenius base is a substance that produces hydroxide ions (OH-) in aqueous solution. When an acid and a base react, they undergo a neutralization reaction, where the H+ ions from the acid combine with the OH- ions from the base to form water (H2O). The remaining ions from the acid and base form a salt. For example, when hydrochloric acid (HCl) reacts with sodium hydroxide (NaOH), it forms water and sodium chloride (NaCl), which is the salt.