If you start with 56.0 grams of sodium, how many moles of water will react with it?

n_{H_2O}=2.43molH_2O

Explanation:

Hello,

The carried out reaction is:

Thus, the moles of water that react with 56.0 g of sodium are computed as follows:

Best regards.

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