Which best identifies why the rusting of an iron nail in the presence of water and oxygen is an oxidation-reduction reaction?

a. water is a reactant
b. electrons are transferred
c. nonmetals and a metal are involved
d. energy is released

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.

he would use the colour black