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
Chemistry: The Molecular Science
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- 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_forward10.) The structural formula of a certain aldehyde (related to formaldehyde) is H3C-CH2-CHO. Draw a Lewis structure for this aldehyde and determine the number of bonds present. Note that a single or a double or a triple bond counts as one bond. Write the number, not the word.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
- is this correct ? Draw the Lewis structure of formaldehyde (H₂CO).arrow_forwardThe carbonate anion, CO32- , is a resonance hybrid. Draw all of the important resonance structures for this molecule. If an atom has a nonzero formal charge, be sure the formal charge is shown clearly in the structure. Use the resonance structures to calculate the average formal charge on each O atom (which are all equivalent in the "true" structure). [Note: all of the important contributing resonance structures have octets around each atom that desires an octet.]arrow_forwardConsider the following ions: NO2−NO2−, CO32−CO32−, and ClO4−ClO4−. For each of these, you should use a Lewis structure that satisfies the octet rule. Which of these ions will exhibit resonance among multiple equivalent Lewis structures that satisfy the octet rule?arrow_forward
- Write the Lewis structure for the NO2- ion. Include resonance structures.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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