Multiple choice

How many unpaired electrons are there in an O^2 ion? A) 0 B) 1 C) 2 D) 3 E) 6 In the nitrite ion, NO_2, ___________. A) both bonds are single bonds B) both bonds are double bonds C) one bond is a double bond and the other is a single bond D) both bonds are longer than a double bond and shorter than a single bond E) there are 20 valence electrons

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Tod ThielLv2

10 Apr 2019

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Draw the Lewis structures for the carbonate ion,CO₃^2-. Which statements are correct regardingits Lewis structures?

ResonanceStructures

Choose at least one answer.

	a.There are22 valence electrons.
	b.There are24 valence electrons.
	c.There is 1Lewis structurce.
	d.There are2 resonance forms.
	e.There are3 resonance forms.
	f.Each Lewisstructure has 0 C-O double bonds.
	g.Each Lewisstructure has 1 C-O double bond.
	h.Each Lewisstructure has 2 C-O double bonds.
	i.All theC-O bonds are equivalent and stronger than a single bond.
	j.At anyinstant in time at least one of the C-O bonds is stronger than theother C-O bonds.

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(a) Fluorine has ____ valence electrons and makes ____ bond(s) in compounds.
(b) Oxygen has ____ valence electrons and makes ____ bond(s) in compounds.
(c) Nitrogen has ____ valence electrons and makes ____ bond(s) in compounds.
(d) Carbon has ____ valence electrons and makes____ bond(s) in compounds.