Ch.9 - Bonding & Molecular StructureWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds
Sections
Chemical Bonds
Lattice Energy
Lattice Energy Application
Born Haber Cycle
Dipole Moment
Lewis Dot Structure
Octet Rule
Formal Charge
Resonance Structures
Additional Practice
Bond Energy

Solution: Which of these molecules and polyatomic ions cannot be adequately described using a single Lewis structure?  Check all that apply.CO32-COH2HCNO3NH4+OF2

Problem

Which of these molecules and polyatomic ions cannot be adequately described using a single Lewis structure?  Check all that apply.

CO32-

COH2

HCN

O3

NH4+

OF2

Solution

We have to determine which of the given polyatomic ions cannot be adequately described with a single Lewis structure.

This problem is based on Lewis structures and resonance forms. A Lewis structure shows the placement of atoms in a molecule and the distribution of electrons among atoms.

A resonance structure shows the delocalization of electrons in a molecule. Resonance structures differ only in the placement of electrons.

Molecules having multiple resonance forms cannot be described adequately with a single Lewis structure.


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