Which statement correctly describes protons? A. They have no charge and are present in the nucleus of an atom.
B. They have a negative charge and travel around the nucleus of an atom.
C. They have a positive charge and travel around the nucleus of an atom.
D. They have a positive charge and are present in the nucleus of an atom along with the neutrons.

d

Explanation:

it's basic chemistry. electrons are negative and travel around the outside. neutrons are neutral and in the nucleus with the proton

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.

the answer to this question is 3.