What Makes an Acid Different from a Base

Question

What makes an acid different from a base?
A) Acids contain more hydrogen ions than hydroxide ions.
B) Acids have a pH of 7 or greater.
C) Acids taste sweet.
D) Acids have equal amounts of hydrogen and hydroxide ions.

Accepted Answer

Acids contain more hydrogen ions (H+) than hydroxide ions (OH-), which is what differentiates them from bases. Bases have more hydroxide ions than hydrogen ions.