Question 1

Ionic compounds consist of a single three-dimensional network of ions that are attracted to one another by strong ________ and usually exist in the solid state at room temperature,whereas covalent compounds consist of molecules that are attracted to one another by weak ________ and can exist in gaseous,liquid,or solid state at room temperature.

Accepted Answer

The answer of Ionic compounds consist of a single three-dimensional...

Question 2

The orbital hybridization on the carbon atom in C₂H₂ is A)sp. B)sp². C)sp³. D)sp³^d².

Accepted Answer

In C2H2 (acetylene), each carbon atom forms two sigma bonds and two pi bonds, resulting in a linear geometry with 180-degree bond angles, which corresponds to sp hybridization.

Question 3

Classify bonds in As₄ as largely ionic,nonpolar covalent,or polar covalent.

Accepted Answer

The answer of Classify bonds in As₄ as largely ionic,nonpolar...

Question 4

What is the O-B-O bond angle in BO₃^3-? A)less than 109.5° B)109.5° C)120° D)greater than 120°

Accepted Answer

The answer of What is the O-B-O bond angle in...

Question 5

Among the compounds H₃C-CH₃,H₂C=CH₂,and HC=CH,the compound with the strongest carbon-carbon bond is ________,and the compound with the longest carbon-carbon bond is ________.

Accepted Answer

The answer of Among the compounds H₃C-CH₃,H₂C=CH₂,and HC=CH,the compound with...

Question 6

Which compound is most likely to exist as a gas at room temperature?

Accepted Answer

The answer of Which compound is most likely to exist...

Question 7

What is the molecular geometry of Te Cl₄? A)seesaw B)square planar C)square pyramidal D)tetrahedral

Accepted Answer

The molecular geometry of TeCl₄ (TeCl4) is seesaw. This is because the central atom, tellurium (Te), has five regions of electron density around it: four bonding pairs from the chlorine atoms and one lone pair. This arrangement distorts the geometry from a trigonal bipyramid to a seesaw shape.

Question 8

Which of the following best describes Cl F₂^-? It has a molecular geometry that is A)linear with no lone pairs on the Cl atom. B)linear with lone pairs on the Cl atom. C)nonlinear with no lone pairs on the Cl atom. D)nonlinear with lone pairs on the Cl atom.

Accepted Answer

The notation describes a molecule with a central chlorine (Cl) atom surrounded by various substituents and lone pairs. The "S1U1" segments indicate single bonds with one unbonded electron pair (lone pair) on the chlorine, and "P1" indicates a phosphorus atom bonded to chlorine. Given the presence of lone pairs and the linear arrangement suggested by the single bonds to sulfur and phosphorus, the geometry is linear with lone pairs on the Cl atom.

Question 9

Of the bonds C-C,C-N,C-O,and C-F,the bond that is most polar is ________.

Accepted Answer

The answer of Of the bonds C-C,C-N,C-O,and C-F,the bond that...

Question 10

The Lewis electron-dot structure of N₂ has ________ nonbonding electrons pairs,________ bonding electron pairs,and a bond order of ________.

Accepted Answer

The answer of The Lewis electron-dot structure of N₂ has...

Question 11

The VSEPR model predicts the HOH bond angle in H₃O⁺ to be A)60°. B)90°. C)less than 109.5° but greater than 90°. D)109.5°.

Accepted Answer

The central atom in the given molecule is phosphorus, which has five electron domains (one lone pair, three single bonds, and one double bond). The VSEPR model predicts that these electron domains will arrange themselves to maximize the distance between them, resulting in a trigonal bipyramidal geometry. The lone pair will occupy one of the equatorial positions, making the molecule AX4E (A: central atom, X: surrounding atoms, E: lone pair). 
The H-O-H bond angle in water (HOH) is 104.5°, which is less than the ideal tetrahedral angle of 109.5° due to the lone pair on the oxygen atom. Similarly, in the given molecule, the H-O-H bond angle will be less than 109.5° due to the lone pair on the phosphorus atom. However, the exact value cannot be determined based on the given information. Since the question asks for the predicted bond angle, the best choice is C, which indicates that the bond angle will be less than 109.5° but greater than 90°.

Question 12

Using only the elements Ba,F,and P,give the formula of a compound having largely polar covalent bonds.

Accepted Answer

The answer of Using only the elements Ba,F,and P,give the...

Question 13

The Lewis electron-dot structure of H₂CO has ________ nonbonding electron pairs,________ bonding electron pairs,and a carbon-oxygen bond order of ________.

Accepted Answer

The answer of The Lewis electron-dot structure of H₂CO has...

Question 14

Using only the elements Ba,Cl,and P,give the formula of a compound having largely ionic bonds.

Accepted Answer

The answer of Using only the elements Ba,Cl,and P,give the...

Question 15

Based on formal charges,the best Lewis electron-dot structure of BF₃ has a B-F bond order equal to ________.

Accepted Answer

The answer of Based on formal charges,the best Lewis electron-dot...

Question 16

What are the F-Po-F bond angles in PoF₆ ? A)60° B)90° C)109.5° D)120°

Accepted Answer

The answer of What are the F-Po-F bond angles in...

Question 17

The number of Lewis electron dot resonance structures required to describe NO₂^- is ________.

Accepted Answer

The answer of The number of Lewis electron dot resonance...

Question 18

Of H₂CO and CO and CO₂,the compound having the strongest C-O bond is ________.

Accepted Answer

The answer of Of H₂CO and CO and CO₂,the compound...

Question 19

Classify bonds in CaO as largely ionic,nonpolar covalent,or polar covalent.

Accepted Answer

The answer of Classify bonds in CaO as largely ionic,nonpolar...

Question 20

What is the molecular geometry of SF₅^-? A)octahedral B)seesaw C)square pyramidal D)trigonal bipyramidal

Accepted Answer

The molecular formula SFS indicates a central sulfur atom with five fluorine atoms and one lone pair. This arrangement corresponds to a square pyramidal geometry.

Quiz 7: Covalent Bonds and Molecular Structure

The orbital hybridization on the carbon atom in C₂H₂ is

Classify bonds in As₄ as largely ionic,nonpolar covalent,or polar covalent.

What is the O-B-O bond angle in BO₃^3-?

Among the compounds H₃C-CH₃,H₂C=CH₂,and HC=CH,the compound with the strongest carbon-carbon bond is ,and the compound with the longest carbon-carbon bond is .

Which compound is most likely to exist as a gas at room temperature?

What is the molecular geometry of Te Cl₄?

Which of the following best describes Cl F₂^-? It has a molecular geometry that is

Of the bonds C-C,C-N,C-O,and C-F,the bond that is most polar is ________.

The Lewis electron-dot structure of N₂ has nonbonding electrons pairs, bonding electron pairs,and a bond order of .

The VSEPR model predicts the HOH bond angle in H₃O⁺ to be

Using only the elements Ba,F,and P,give the formula of a compound having largely polar covalent bonds.

The Lewis electron-dot structure of H₂CO has nonbonding electron pairs, bonding electron pairs,and a carbon-oxygen bond order of .

Using only the elements Ba,Cl,and P,give the formula of a compound having largely ionic bonds.

Based on formal charges,the best Lewis electron-dot structure of BF₃ has a B-F bond order equal to ________.

What are the F-Po-F bond angles in PoF₆ ?

The number of Lewis electron dot resonance structures required to describe NO₂^- is ________.

Of H₂CO and CO and CO₂,the compound having the strongest C-O bond is ________.

Classify bonds in CaO as largely ionic,nonpolar covalent,or polar covalent.

What is the molecular geometry of SF₅^-?

Quiz 7: Covalent Bonds and Molecular Structure

The orbital hybridization on the carbon atom in C2H2 is

Classify bonds in As4 as largely ionic,nonpolar covalent,or polar covalent.

What is the O-B-O bond angle in BO33-?

Among the compounds H3C-CH3,H2C=CH2,and HC=CH,the compound with the strongest carbon-carbon bond is ________,and the compound with the longest carbon-carbon bond is ________.

Which compound is most likely to exist as a gas at room temperature?

What is the molecular geometry of Te Cl4?

Which of the following best describes Cl F2-? It has a molecular geometry that is

Of the bonds C-C,C-N,C-O,and C-F,the bond that is most polar is ________.

The Lewis electron-dot structure of N2 has ________ nonbonding electrons pairs,________ bonding electron pairs,and a bond order of ________.

The VSEPR model predicts the HOH bond angle in H3O+ to be

Using only the elements Ba,F,and P,give the formula of a compound having largely polar covalent bonds.

The Lewis electron-dot structure of H2CO has ________ nonbonding electron pairs,________ bonding electron pairs,and a carbon-oxygen bond order of ________.

Using only the elements Ba,Cl,and P,give the formula of a compound having largely ionic bonds.

Based on formal charges,the best Lewis electron-dot structure of BF3 has a B-F bond order equal to ________.

What are the F-Po-F bond angles in PoF6 ?

The number of Lewis electron dot resonance structures required to describe NO2- is ________.

Of H2CO and CO and CO2,the compound having the strongest C-O bond is ________.

Classify bonds in CaO as largely ionic,nonpolar covalent,or polar covalent.

What is the molecular geometry of SF5-?

The orbital hybridization on the carbon atom in C₂H₂ is

Classify bonds in As₄ as largely ionic,nonpolar covalent,or polar covalent.

What is the O-B-O bond angle in BO₃^3-?

Among the compounds H₃C-CH₃,H₂C=CH₂,and HC=CH,the compound with the strongest carbon-carbon bond is ,and the compound with the longest carbon-carbon bond is .

What is the molecular geometry of Te Cl₄?

Which of the following best describes Cl F₂^-? It has a molecular geometry that is

The Lewis electron-dot structure of N₂ has nonbonding electrons pairs, bonding electron pairs,and a bond order of .

The VSEPR model predicts the HOH bond angle in H₃O⁺ to be

The Lewis electron-dot structure of H₂CO has nonbonding electron pairs, bonding electron pairs,and a carbon-oxygen bond order of .

Based on formal charges,the best Lewis electron-dot structure of BF₃ has a B-F bond order equal to ________.

What are the F-Po-F bond angles in PoF₆ ?

The number of Lewis electron dot resonance structures required to describe NO₂^- is ________.

Of H₂CO and CO and CO₂,the compound having the strongest C-O bond is ________.

What is the molecular geometry of SF₅^-?