How many total atoms are in 1 mole of H2O?

1.806 x 10^24 atoms total

Explanation:

There are 2 moles of hydrogen atoms in a mole of water molecules and 1 mole of oxygen atoms. Two hydrogen atoms and one oxygen atom form a water molecule.

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.

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