In an Aqueous Solution, [OH⁻] Is 2

Multiple Choice

In an aqueous solution, [OH⁻] is 2.0 × 10⁻⁶ M. What is [H⁺]?

A) 5.0 × 10⁻⁹ M
B) 1.0 × 10⁻⁷ M
C) 2.0 × 10⁻⁶ M
D) 1.0 × 10⁸ M