The hydrogen ion concentration is 1 × 10-7. what is the ph of this solution?

Explanation:

The pH is a measure of the acidity of the solutions. It is defined as the negative logarithm of the molar concentration of hydrogen ions (H⁺).

The hydrogen ion concentration of this solution is 1 × 10⁻⁷ M.

Hence:

This pH corresponds to a neutral solution (neither acid nor alkaline).

You should remember this relation bwtween pH and acidity/alkaliinity:

u i forgot the answer?

it's c. elements are placed in rows based on how may valencies electrons have.