Question 1

Which of the following statements best describes the difference between ionic and covalent bonding?

Accepted Answer

Ionic bonding involves the transfer of electrons from a metal to a nonmetal, while covalent bonding involves the sharing of electrons between two nonmetals.

Question 2

Which of the following compounds is most likely to be ionic?

Accepted Answer

NaCl

Question 3

What is the correct Lewis structure for ammonia (NH3)?

Accepted Answer

A nitrogen atom with three single bonds to hydrogen atoms and one lone pair on nitrogen.

Question 4

Which of the following elements has the highest electronegativity?

Accepted Answer

Fluorine

Question 5

Given the following electronegativity values: H (2.1), O (3.5), C (2.5), which bond is the most polar?

Accepted Answer

$$	ext{H-O}$$

Question 6

Which of the following molecules contains a triple bond?

Accepted Answer

N2

Question 7

What is the formal charge on the central atom in the Lewis structure of $$	ext{CO}_2$$?

Accepted Answer

0

Question 8

Which of the following is the correct IUPAC name for $$	ext{N}_2	ext{O}_5$$?

Accepted Answer

Dinitrogen pentoxide

Question 9

Which of the following compounds is a molecular (covalent) compound?

Accepted Answer

CO2

Question 10

Which of the following best describes a resonance structure?

Accepted Answer

One of two or more valid Lewis structures that can be drawn for a molecule, with electrons delocalized over adjacent atoms.

Question 11

Which of the following is the correct formula for chlorine dioxide?

Accepted Answer

ClO2

Question 12

Which of the following statements about the octet rule is correct?

Accepted Answer

Elements in period 3 or higher can have expanded valence shells.

Question 13

Which of the following compounds will conduct electricity when dissolved in water?

Accepted Answer

NaCl

Question 14

What is the dipole moment ($$\mu) $$formula?

Accepted Answer

$$\mu = Qr$$

Question 15

Which of the following is the correct name for $$	ext{SO}_3$$?

Accepted Answer

Sulfur trioxide

Question 16

Which of the following is a property of ionic compounds?

Accepted Answer

They conduct electricity when molten or dissolved in water.

Question 17

Which of the following is the correct formula for nitric oxide?

Accepted Answer

NO

Question 18

Which of the following is the correct Lewis structure for $$	ext{C}_2	ext{H}_4 ($$ethylene)?

Accepted Answer

Each carbon atom forms three single bonds: two to hydrogen and one to the other carbon, with a double bond between the carbons.

Question 19

Which of the following is the correct IUPAC name for $$	ext{Cl}_2	ext{O}_7$$?

Accepted Answer

Dichlorine heptoxide

Question 20

Which of the following statements about formal charge is correct?

Accepted Answer

A more negative formal charge should reside on a more electronegative atom.

Chemical Bonds, Electronegativity, and Covalent Compounds: Study Notes

Study Guide - Practice Questions

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