Which option correctly shows the concentration of H3O+ ions in pure water?(1 point) Responses 1.0 x 10-14 mol/L 1.0 x 10 -14 mol/L 1.0 × 10-7 mol/L 1.0 × 10 -7 mol/L 7 mol/L 7 mol/L 14 mol/L

In pure water at 25°C, the concentration of hydronium ions (H3O+) is \(1.0 \times 10^{-7} \, \text{mol/L}\). Therefore, the correct option is:

**1.0 × 10^-7 mol/L**

or

**1.0 x 10 -7 mol/L**

Both options represent the same concentration, so either of those would be correct.