Write the overall equation for the reaction occurring in a lead-acid cell during dis-

charge. What happens to the sulfuric acid

concentration during this process? Why is it

possible to use a hydrometer, which meas-

ures the density of a liquid, to determine if

a lead-acid cell is fully charged?

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