Multiple choice

A base is a compound that ______ the number of ____(_) when dissolved in water.

  1. Decreases, Hydroxide, H+

  2. Increases, Hydrogen, H+

  3. Increases, Hydroxide, OH-

  4. Decreases, Hydrogen, OH-

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

By the Arrhenius definition, a base increases the concentration of hydroxide ions (OH-) in an aqueous solution.