What is the molecular shape of BCl3 as predicted by the VSEPR theory?

A) linear B) trigonal planar C) bent D) tetrahedral E) trigonal pyramidal A) linear B) trigonal planar C) bent D) tetrahedral E) trigonal pyramidal

Predict the ideal bond angles around nitrogen in N2F2 using the molecular shape given by the VSEPR theory. (The two N atoms are the central atoms.)

A) 90° B) 109° C) 120° D) 180° E) between 120 and 180° A) 90° B) 109° C) 120° D) 180° E) between 120 and 180°

Predict the smallest actual bond angle in BrF3 using the VSEPR theory.

A) more than 120° B) exactly 120° C) between 109° and 120° D) between 90° and 109° E) less than 90° A) more than 120° B) exactly 120° C) between 109° and 120° D) between 90° and 109° E) less than 90°

In the following Lewis structure for ClO3F, chlorine has a formal charge of ____ and an oxidation number of ____.

A) 7, 7 B) 7, -1 C) 1, 1 D) 1, -1 E) 1, 7 A) 7, 7 B) 7, -1 C) 1, 1 D) 1, -1 E) 1, 7

What is the molecular shape of XeO2F2 as predicted by the VSEPR theory?

A) square planar B) tetrahedral C) square pyramidal D) see-saw E) octahedral A) square planar B) tetrahedral C) square pyramidal D) see-saw E) octahedral

What is the molecular shape of ClF2- as predicted by the VSEPR theory?

A) linear B) bent C) see-saw D) T-shaped E) L-shaped A) linear B) bent C) see-saw D) T-shaped E) L-shaped

Exam 10: The Shapes of Molecules

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Draw Lewis structures which obey the octet rule, for the following atoms, molecules, and ions, showing all valence electrons. Central atoms are shown in bold. a. NH₃ b. O₃ (Hint: O₃ is not cyclic) c. HCN d. SO₃

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Question 21

Using SO₂ as an example, describe the sort of experimental data which might suggest that no single Lewis structure is an accurate representation of its bonding.

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Question 22

Select the correct Lewis structure for NOCl, a reactive material used as an ionizing solvent.

(Multiple Choice)

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Question 23

Which one of the following molecules contains a double bond?

(Multiple Choice)

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Question 24

Use VSEPR theory to predict the electron group arrangement around iodine, the central atom in the ion IF₂^-.

(Multiple Choice)

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Question 25

The molecule AX₂, where A and X are different elements, will have a dipole moment if the molecule is bent.

(True/False)

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Question 26

What is the molecular shape of BCl₃as predicted by the VSEPR theory?

(Multiple Choice)

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Question 27

Predict the ideal bond angles around nitrogen in N₂F₂using the molecular shape given by the VSEPR theory. (The two N atoms are the central atoms.)

(Multiple Choice)

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Question 28

Predict the smallest actual bond angle in BrF₃using the VSEPR theory.

(Multiple Choice)

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Question 29

In which one of the following molecules are all the bonds single?

(Multiple Choice)

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Question 30

Select the correct Lewis structure for TeBr₂.

(Multiple Choice)

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Question 31

Predict the ideal bond angles in FNO using the molecular shape given by the VSEPR theory.

(Multiple Choice)

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Question 32

Select the Lewis structure for XeO₂F₂which correctly minimizes formal charges.

(Multiple Choice)

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Question 33

In the following Lewis structure for ClO₃F, chlorine has a formal charge of and an oxidation number of .

(Multiple Choice)

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Question 34

Which one of the following Lewis structures is definitely incorrect?

(Multiple Choice)

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Question 35

What is the molecular shape of XeO₂F₂as predicted by the VSEPR theory?

(Multiple Choice)

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Question 36

What is the molecular shape of ClF₂^- as predicted by the VSEPR theory?

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Question 37

a. Draw and name three molecular shapes for molecules having the VSEPR formulas AX₃, AX₃E, and AX₃E₂, respectively. b. If the three X groups in the above formulas are identical, which of the three shapes would result in a molecule with a dipole moment?

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Question 38

Oxygen difluoride is a powerful oxidizing and fluorinating agent. Select its Lewis structure.

(Multiple Choice)

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Question 39

The formal charge on Cl in the structure shown for the perchlorate ion is

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Question 40

Showing 21 - 40 of 109

Exam 10: The Shapes of Molecules

Draw Lewis structures which obey the octet rule, for the following atoms, molecules, and ions, showing all valence electrons. Central atoms are shown in bold. a. NH3 b. O3 (Hint: O3 is not cyclic) c. HCN d. SO3

Using SO2 as an example, describe the sort of experimental data which might suggest that no single Lewis structure is an accurate representation of its bonding.

Select the correct Lewis structure for NOCl, a reactive material used as an ionizing solvent.

Which one of the following molecules contains a double bond?

Use VSEPR theory to predict the electron group arrangement around iodine, the central atom in the ion IF2-.

The molecule AX2, where A and X are different elements, will have a dipole moment if the molecule is bent.

What is the molecular shape of BCl3 as predicted by the VSEPR theory?

Predict the ideal bond angles around nitrogen in N2F2 using the molecular shape given by the VSEPR theory. (The two N atoms are the central atoms.)

Predict the smallest actual bond angle in BrF3 using the VSEPR theory.

In which one of the following molecules are all the bonds single?

Select the correct Lewis structure for TeBr2.

Predict the ideal bond angles in FNO using the molecular shape given by the VSEPR theory.

Select the Lewis structure for XeO2F2 which correctly minimizes formal charges.

In the following Lewis structure for ClO3F, chlorine has a formal charge of ____ and an oxidation number of ____.

Which one of the following Lewis structures is definitely incorrect?

What is the molecular shape of XeO2F2 as predicted by the VSEPR theory?

What is the molecular shape of ClF2- as predicted by the VSEPR theory?

a. Draw and name three molecular shapes for molecules having the VSEPR formulas AX3, AX3E, and AX3E2, respectively. b. If the three X groups in the above formulas are identical, which of the three shapes would result in a molecule with a dipole moment?

Oxygen difluoride is a powerful oxidizing and fluorinating agent. Select its Lewis structure.

The formal charge on Cl in the structure shown for the perchlorate ion is

Keys to the Study of Chemistry

The Components of Matter

Stoichiometry of Formulas and Equations

The Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry: Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

Theories of Covalent Bonding

Intermolecular Forces: Liquids, Solids, and Phase Changes

The Properties of Mixtures: Solutions and Colloids

Periodic Patterns in the Main Group Elements: Bonding, Structure, and Reactivity

Organic Compounds and the Atomic Properties of Carbon

Kinetics: Rates and Mechanisms of Chemical Reactions

Equilibrium: the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics: Entropy, Free Energy, and the Direction of Chemical Reactions

Electrochemistry: Chemical Change and Electrical Work

The Elements in Nature and Industry

The Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

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Draw Lewis structures which obey the octet rule, for the following atoms, molecules, and ions, showing all valence electrons. Central atoms are shown in bold. a. NH₃ b. O₃ (Hint: O₃ is not cyclic) c. HCN d. SO₃

Using SO₂ as an example, describe the sort of experimental data which might suggest that no single Lewis structure is an accurate representation of its bonding.

Use VSEPR theory to predict the electron group arrangement around iodine, the central atom in the ion IF₂^-.

The molecule AX₂, where A and X are different elements, will have a dipole moment if the molecule is bent.

What is the molecular shape of BCl₃as predicted by the VSEPR theory?

Predict the ideal bond angles around nitrogen in N₂F₂using the molecular shape given by the VSEPR theory. (The two N atoms are the central atoms.)

Predict the smallest actual bond angle in BrF₃using the VSEPR theory.

Select the correct Lewis structure for TeBr₂.

Select the Lewis structure for XeO₂F₂which correctly minimizes formal charges.

In the following Lewis structure for ClO₃F, chlorine has a formal charge of and an oxidation number of .

What is the molecular shape of XeO₂F₂as predicted by the VSEPR theory?

What is the molecular shape of ClF₂^- as predicted by the VSEPR theory?

a. Draw and name three molecular shapes for molecules having the VSEPR formulas AX₃, AX₃E, and AX₃E₂, respectively. b. If the three X groups in the above formulas are identical, which of the three shapes would result in a molecule with a dipole moment?