Please answer the last 3 in the last column. I will give you points, 5 stars, thanks, and a BRAINLIEST if you pls answer it correctly! Thank you so much and have a good day :)

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.

it's all four options.