Which chemical symbols will complete the equation for this decomposition reaction? 2KI → 2_ + _ 2

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

the answer is c.the valence of the atoms combine .

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;