What is the [OH-] in a solution that has a [H30]+= 1x 10^-6 M?​

The answer is the first option just took the test

The atomic nucleus made up from protons (yellow) and neutrons (blue) and held together by nuclear forces. nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. they bind protons and neutrons (“nucleons”) into atomic