This reaction takes place in a nickel-iron battery.
fe(s) + 2nio(oh)(s) + 2h2o(1) ►
fe(oh)2(s) + 2ni(oh)2(aq)
e was
with
cent.
determine the number of moles of iron(ii) hydroxide
(fe(oh)2) produced if 5.00 mol fe and 8.00 mol
nio(oh) react.

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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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