1- what is the concentration of a solution with 8.37 g of table salt in 150 g of solution? 2- what is the concentration of a solution with 31.27 g of hydrogen peroxide in 98 g of solution?

3- how many grams of solute are in 163 g of a 25.7% solution?

4- how many grams of solute are in 96 g of a 6.8% solution?

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