Metal ions are typically their corresponding neutral atoms. nonmetal ions are typically than their corresponding neutral atoms.

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.

2b2t

explanation:

2b2t

the answer is a! (2.9 x 10^-18 j) hope i could someone. : )