Concept explainers
Interpretation:
A Lewis structure and resonances for this
Concept Introduction:
Lewis structures otherwise known as Lewis dot diagrams or electron dot structures.
The bond between atoms and lone pairs of electrons that is present in the molecule. Lewis structure represents each atom and their position in structure using the chemical symbol. Excess electrons forms the lone pair are given by pair of dots, and are located next to the atom.
Resonance structure is two forms of a molecule where the chemical connectivity is the same but the electrons are distributed differently around the structure. Generally put double headed arrows between two resonance structures.
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Chapter 6 Solutions
OWLv2 for Moore/Stanitski's Chemistry: The Molecular Science, 5th Edition, [Instant Access], 1 term (6 months)
- Write the Lewis structure for nitrosyl fluoride, FNO. Using only a periodic table, identify (a) which is the longer bond. (b) which is the stronger bond. (c) which is the more polar bond.arrow_forwardConsider the pyrosulfate ion, S2O72-. It has no sulfur–sulfur nor oxygen–oxygen bonds. (a) Write a Lewis structure for the pyrosulfate ion using only single bonds. (b) What is the formal charge on the sulfur atoms for the Lewis structure you drew in part (a)? (c) Write another Lewis structure using six bonds and two O—S bonds. (d) What is the formal charge on each atom for the structure you drew in part (c)?arrow_forwardHow many electron dots should appear in the Lewis structures for each of the following polyatomic ions? a. ClO b. ClO2 c. S22 d. NH4+arrow_forward
- Many monatomic ions are found in seawater, including the ions formed from the following list of elements. Write the Lewis symbols for the monatomic ions formed from the following elements: (a) Cl (b) Na (c) Mg (d) Ca (e) K (f) Br (g) Sr (h) Farrow_forwardis this correct ? Draw the Lewis structure of formaldehyde (H₂CO).arrow_forwardConsider the formate ion, HCO2-, which is the anion formed when formic acid lose an H+ ion. The H and the two O atoms are bonded to the central C atom. a) Draw the best Lewis structure for this ion. b) Are resonance structures needed to describe this structure? c) Would you predict that the C-O bond lengths in the formate ion would be longer or shorter relative to those in CO2?arrow_forward
- Draw the Lewis structure of the polyatomic ion FO 2 + . Don't forget the resonance structures (if any).arrow_forwardWrite the Lewis structure for the NO2- ion. Include resonance structures.arrow_forwardFor the following three Lewis structures, list whether they are correct or incorrect: alt-text for image above: The first image shows a proposed Lewis structure for Freon-13, CClF3, that has a central carbon singly bonded to a three chlorine atoms and a fluorine atom. Each chlorine and the fluorine have 3 lone pairs of electrons around them. The second image shows a proposed lewis structure for the nitrite ion, NO2-, as a central nitrogen atom between two oxygen atoms. The O atom on the left has three lone pairs of electrons and then a single bond between the N. The right O atom has two lone pairs of electrons and a double bond with the N atom. The N atom has a single lone pair of electrons in addition to the double and single bonds with oxygen atoms. The third image shows diazomethane, CH2N2, and the proposed Lewis structure has a carbon singly bonded to two H atoms, then doubly bonded to a nitrogen. The nitrogen is doubly bonded to the second nitrogen, and the second nitrogen has…arrow_forward
- When gaseous sulfur trioxide is dissolved in concentratedsulfuric acid, disulfuric acid forms:SO₃(g)+ H₂SO₄(l) →H₂S₂O₇(l) Use bond energies Table to determine ΔH°ᵣₓₙ. (The S atoms in H₂S₂O₇ are bonded through an O atom. Assume Lewis structures with zero formal charges; BE of SNO is 552 kJ/mol.)arrow_forwardWrite the Lewis structure for each ion. Include resonance structures if necessary and assign formal charges to all atoms. If necessary, expand the octet on the central atom to lower formal charge. ClO2-arrow_forwardAcetylene gas (ethyne; HC≡CH) burns with oxygen in an oxyacetylene torch to produce carbon dioxide, water vapor, and the heat needed to weld metals. The heat of combustion for acetylene is −1259 kJ/mol. Calculate the C≡C bond energy. The average bond energies (kJ/mol) C―H 413 C―C 347 C═C 620 H―H 436 O―O 142 O═O 498 H―O 467 C―O 351 C═O 799arrow_forward
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