How many moles of lithium nitrate ane hequired to form exactly 12.5 moles of lead (IV) nitrate if you have an excess of lead (IV) Aulfate?

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!

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~ trueboss72

it would be b. 6co2 + 6h2o --> c6h12o6 + 6o2