Given the incomplete equation representing a reaction:
2na(s) + 2h2o() → 2na+(aq) + 2 (aq) + h2(g)
what is the formula of the missing product

Answer : The formula of the missing product is,

Explanation :

The given incomplete equation representing a reaction,

When the sodium metal react with the water then it gives a colorless solution of sodium hydroxide and hydrogen gas. In the solution, sodium hydroxide is present in the form of ions i.e, and ions.

The balanced chemical reaction will be,

Therefore, the formula of the missing product is,

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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