You are running an experiement with different concentrations (molarities of the same chemical. Which concentration would react the slowest?
3.0 M
1.0M
0.5 M
0.1 M

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.