Question

what is an acid - base reaction? match the items in the left column to the appropriate blanks in the sentences on the right. a precipitate a new acid or a new base oh⁻ h₂o(l) h⁺ when an acid and base are mixed, the from the acid combines with the from the base to form.

Explanation:

In an acid - base reaction, an acid donates $H^+$ ions and a base donates $OH^-$ ions. These ions combine to form water.

Answer:

When an acid and base are mixed, the $H^+$ from the acid combines with the $OH^-$ from the base to form $H_2O(l)$.