Maria needs to dilute the stock of 16.0 M HCl solution for a lab.
How many mL of water must she add to 5.00 mL of 16.0 M HCI
solution to prepare a 1.00 M HCl solution? __ mL

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