Pure, freshly-distilled water has a pH of 7. This means that
A) there are no H+ ions in the water.
B) there are no OH- ions in the water.
C) the concentration of H+ ions in the water equals the concentration of OH- ions in the water.
D) the concentration of H+ ions in the water is 7 times the concentration of OH- ions in the water.
E) The concentration of OH- ions in the water is 7 times the concentration of H+ ions in the water.
Answer: C) the concentration of H+ ions in the water equals the concentration of OH- ions in the water.