Draw the Lewis structure for NO3- including any valid resonance structures. Describe the resonance hybrid of the nitrate ion. A. The nitrate ion contains three N-O single bonds. B. The nitrate ion contains three N-O bonds that are equivalent to 123 bonds.
C. The nitrate ion contains three N-O bonds that are equivalent to 113 bonds.
D. The nitrate ion contains one N-O single bond and two N=O double bonds.
E. The nitrate ion contains three N=O double bonds.

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

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

water at room temperature is flowing through a pipe with pressure taps located 10 ft apart along one section of the pipe, which are connected to a mercury (s=13.6) manometer.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.