Several drops of litmus indicator solution are added to a test tube containing a colorless solution and the solution turned blue. Several drops of thymolphthalein indicator are added and the solution remained colorless. What can be said about the pH of the solution?

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72

it's 3.2 on edge, i just took the test.