Question

ph, acids and bases quick check
how are acids and protons related? (1 point)
acids are substances that contain more protons than bases.
an acid can donate protons to a base when they react.
an acid can accept a proton from a base when they react.
acids are substances that contain fewer protons than bases.

Explanation:

According to the Brønsted - Lowry acid - base theory, an acid is a proton donor. When an acid reacts with a base, it donates a proton to the base.

Answer:

An acid can donate protons to a base when they react.