Ametal worker wants to figure out the cost of making a rectangular iron bar. he knows that the required dimensions of the bar are 8.0 cm (width), 0.40 cm (height), and 310 cm (length). if this kind of iron costs $0.015 per cm3, what is the cost of making the bar (to the nearest dollar)? a$5 b $15 c $37 d $93

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!

if you need further assistance, let me know: )

~ trueboss72