Question 1

Use Lewis theory to determine the chemical formula for the compound formed between Ba and I.

Accepted Answer

A) BaI 
B) Ba2I3 
C) Ba3I2 
D) BaI2 
E) Ba2I 
A) BaI 
B) Ba2I3 
C) Ba3I2 
D) BaI2 
E) Ba2I D

Question 2

Which of the following represent the Lewis structure for S2⁻?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)    A

Question 3

Which of the following represent the Lewis structure for Mg?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)    C

Question 4

Place the following elements in order of increasing electronegativity.
Sr N Na

Accepted Answer

A) Sr < Na < N 
B) Na < N < Sr 
C) Sr < N < Na 
D) N < Sr < Na 
E) N < Na < Sr 
A) Sr < Na < N 
B) Na < N < Sr 
C) Sr < N < Na 
D) N < Sr < Na 
E) N < Na < Sr

Question 5

Use the bond energies provided to estimate ΔH°rxn for the reaction below.
CH3OH(l)+ 2 O2(g)→ CO2(g)+ 2 H2O(g)ΔH°rxn = ?
Bond Bond Energy (kJ/mol)
C-H 414
C-O 360
C=O 799
O=O 498
O-H 464

Accepted Answer

A) +473 kJ 
B) -91 kJ 
C) -486 kJ 
D) -392 kJ 
E) +206 kJ 
A) +473 kJ 
B) -91 kJ 
C) -486 kJ 
D) -392 kJ 
E) +206 kJ

Question 6

Choose the best Lewis structure for CH2Cl2.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 7

The phosphorus atom in PCl3 would be expected to have a

Accepted Answer

A) partial positive (δ+)charge. 
B) partial negative (δ-)charge. 
C) 3+ charge. 
D) 3- charge. 
A) partial positive (δ+)charge. 
B) partial negative (δ-)charge. 
C) 3+ charge. 
D) 3- charge.

Question 8

Place the following elements in order of decreasing electronegativity.
S Cl Se

Accepted Answer

A) Se > S > Cl 
B) Cl > Se > S 
C) Se > Cl > S 
D) S > Cl > Se 
E) Cl > S > Se 
A) Se > S > Cl 
B) Cl > Se > S 
C) Se > Cl > S 
D) S > Cl > Se 
E) Cl > S > Se

Question 9

How are electron affinity and electronegativity different?

Accepted Answer

Electron affinity is the process of a si

Question 10

Which of the following contains an atom that does not obey the octet rule?

Accepted Answer

A) CsI 
B) SnO2 
C) ClF5 
D) ClF 
A) CsI 
B) SnO2 
C) ClF5 
D) ClF

Question 11

Place the following in order of decreasing magnitude of lattice energy.
K2O Rb2S Li2O

Accepted Answer

A) Li2O > K2O > Rb2S 
B) Li2O > Rb2S > K2O 
C) Rb2S > K2O > Li2O 
D) Rb2S > Li2O > K2O 
E) K2O > Li2O > Rb2S 
A) Li2O > K2O > Rb2S 
B) Li2O > Rb2S > K2O 
C) Rb2S > K2O > Li2O 
D) Rb2S > Li2O > K2O 
E) K2O > Li2O > Rb2S

Question 12

Match the following.
-Ca-O

Accepted Answer

A) weakest ionic bond 
B) strongest covalent bond 
C) metallic bond 
D) highest melting point 
E) longest covalent bond
F)Na-Br
G)C-F 
A) weakest ionic bond 
B) strongest covalent bond 
C) metallic bond 
D) highest melting point 
E) longest covalent bond
F)Na-Br
G)C-F

Question 13

Place the following in order of increasing magnitude of lattice energy.
CaO MgO SrS

Accepted Answer

A) MgO < CaO < SrS 
B) SrS < MgO < CaO 
C) SrS < CaO < MgO 
D) CaO < MgO < SrS 
E) CaO < SrS < MgO 
A) MgO < CaO < SrS 
B) SrS < MgO < CaO 
C) SrS < CaO < MgO 
D) CaO < MgO < SrS 
E) CaO < SrS < MgO

Question 14

Which of the following resonance structures for OCN⁻ will contribute most to the correct structure of OCN⁻?

Accepted Answer

A) O(2 lone pairs)=C=N (2 lone pairs) 
B) O(1 lone pair)≡C-N(3 lone pairs) 
C) O(1 lone pair)=C(2 lp)=N(1 lone pair) 
D) O(3 lone pairs)-C≡N(with 1 lone pair) 
E) They all contribute equally to the correct structure of OCN⁻. 
A) O(2 lone pairs)=C=N (2 lone pairs) 
B) O(1 lone pair)≡C-N(3 lone pairs) 
C) O(1 lone pair)=C(2 lp)=N(1 lone pair) 
D) O(3 lone pairs)-C≡N(with 1 lone pair) 
E) They all contribute equally to the correct structure of OCN⁻.

Question 15

Which of the following elements can form compounds with an expanded octet?

Accepted Answer

A) Se 
B) C 
C) Li 
D) F 
E) All of the above elements can form compounds with an expanded octet. 
A) Se 
B) C 
C) Li 
D) F 
E) All of the above elements can form compounds with an expanded octet.

Question 16

Choose the best Lewis structure for XeI2.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 17

Which of the following represent the Lewis structure for Ca2⁺?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 18

Of the following elements,which has the highest electronegativity?

Accepted Answer

A) S 
B) Cl 
C) Ti 
D) Se 
A) S 
B) Cl 
C) Ti 
D) Se

Question 19

Which of the following elements can form compounds with an expanded octet?

Accepted Answer

A) O 
B) Br 
C) F 
D) Be 
E) None of the above can form compounds with an expanded octet. 
A) O 
B) Br 
C) F 
D) Be 
E) None of the above can form compounds with an expanded octet.

Question 20

Use Lewis theory to determine the chemical formula for the compound formed between Ca and N.

Accepted Answer

A) CaN 
B) Ca3N2 
C) CaN2 
D) Ca2N 
E) Ca2N3 
A) CaN 
B) Ca3N2 
C) CaN2 
D) Ca2N 
E) Ca2N3

Use Lewis theory to determine the chemical formula for the compound formed between Ba and I.

Which of the following represent the Lewis structure for S²⁻?

Which of the following represent the Lewis structure for Mg?

Place the following elements in order of increasing electronegativity. Sr N Na

Use the bond energies provided to estimate ΔH°_rxn for the reaction below. CH₃OH(l)+ 2 O₂(g)→ CO₂(g)+ 2 H₂O(g)ΔH°_rxn= ? Bond Bond Energy (kJ/mol) C-H 414 C-O 360 C=O 799 O=O 498 O-H 464

Choose the best Lewis structure for CH₂Cl₂.

The phosphorus atom in PCl₃ would be expected to have a

Place the following elements in order of decreasing electronegativity. S Cl Se

How are electron affinity and electronegativity different?

Which of the following contains an atom that does not obey the octet rule?

Place the following in order of decreasing magnitude of lattice energy. K₂O Rb₂S Li₂O

Match the following. -Ca-O

Place the following in order of increasing magnitude of lattice energy. CaO MgO SrS

Which of the following resonance structures for OCN⁻ will contribute most to the correct structure of OCN⁻?

Which of the following elements can form compounds with an expanded octet?

Choose the best Lewis structure for XeI₂.

Which of the following represent the Lewis structure for Ca²⁺?

Of the following elements,which has the highest electronegativity?

Which of the following elements can form compounds with an expanded octet?

Use Lewis theory to determine the chemical formula for the compound formed between Ca and N.

Matter, Measurement, and Problem Solving

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Molecules, Compounds and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Liquids, Solids, and Intermolecular Forces

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Exam 9: Chemical Bonding I: Lewis Theory

Use Lewis theory to determine the chemical formula for the compound formed between Ba and I.

Which of the following represent the Lewis structure for S2⁻?

Which of the following represent the Lewis structure for Mg?

Place the following elements in order of increasing electronegativity. Sr N Na

Use the bond energies provided to estimate ΔH°rxn for the reaction below. CH3OH(l)+ 2 O2(g)→ CO2(g)+ 2 H2O(g)ΔH°rxn = ? Bond Bond Energy (kJ/mol) C-H 414 C-O 360 C=O 799 O=O 498 O-H 464

Choose the best Lewis structure for CH2Cl2.

The phosphorus atom in PCl3 would be expected to have a

Place the following elements in order of decreasing electronegativity. S Cl Se

How are electron affinity and electronegativity different?

Which of the following contains an atom that does not obey the octet rule?

Place the following in order of decreasing magnitude of lattice energy. K2O Rb2S Li2O

Match the following. -Ca-O

Place the following in order of increasing magnitude of lattice energy. CaO MgO SrS

Which of the following resonance structures for OCN⁻ will contribute most to the correct structure of OCN⁻?

Which of the following elements can form compounds with an expanded octet?

Choose the best Lewis structure for XeI2.

Which of the following represent the Lewis structure for Ca2⁺?

Of the following elements,which has the highest electronegativity?

Which of the following elements can form compounds with an expanded octet?

Use Lewis theory to determine the chemical formula for the compound formed between Ca and N.

Matter, Measurement, and Problem Solving

Atoms and Elements

Molecules, Compounds and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Filters

Which of the following represent the Lewis structure for S²⁻?

Use the bond energies provided to estimate ΔH°_rxn for the reaction below. CH₃OH(l)+ 2 O₂(g)→ CO₂(g)+ 2 H₂O(g)ΔH°_rxn= ? Bond Bond Energy (kJ/mol) C-H 414 C-O 360 C=O 799 O=O 498 O-H 464

Choose the best Lewis structure for CH₂Cl₂.

The phosphorus atom in PCl₃ would be expected to have a

Place the following in order of decreasing magnitude of lattice energy. K₂O Rb₂S Li₂O

Choose the best Lewis structure for XeI₂.

Which of the following represent the Lewis structure for Ca²⁺?