Chemical Bonding Quiz

What are the bonding types of the first twenty elements?

• Metallic, covalent molecular, covalent network, monatomic

• Ionic, covalent molecular, covalent network, monatomic

• Metallic, ionic, covalent network, monatomic

• Metallic, covalent molecular, ionic, monatomic

Describe the bonding continuum moving from pure non-polar covalent to ionic.

• It involves a gradual increase in polarity.

• It involves a sudden change in polarity.

• It involves a decrease in polarity.

• It involves no change in polarity.

How do polar covalent bonds arise?

• From equal sharing of electrons between atoms.

• From unequal sharing of electrons between atoms.

• From the transfer of electrons between atoms.

• From the sharing of protons between atoms.

How do van der Waals forces arise between molecules?

• From the attraction between ions.

• From the attraction between permanent dipoles.

• From temporary dipoles induced in atoms or molecules.

• From the sharing of electrons between atoms.

What causes dispersion forces to exist between gaseous atoms and molecules?

• Permanent dipoles.

• Temporary dipoles.

• Ionic bonds.

• Covalent bonds.

How does the polarity of molecules affect the strength of dispersion forces?

• Higher polarity increases the strength of dispersion forces.

• Higher polarity decreases the strength of dispersion forces.

• Polarity has no effect on dispersion forces.

• Only non-polar molecules have dispersion forces.

Why do certain molecules have a stronger type of van der Waals force called a hydrogen bond?

• Because they have high molecular weight.

• Because they have hydrogen atoms bonded to highly electronegative atoms.

• Because they have low molecular weight.

• Because they have hydrogen atoms bonded to less electronegative atoms.

How are the properties of substances affected by the type of bonding they exhibit?

• The type of bonding has no effect on the properties of substances.

• The type of bonding affects only the melting point of substances.

• The type of bonding affects the melting point, boiling point, and solubility of substances.

• The type of bonding affects only the boiling point of substances.

How can the solubility of a substance be predicted from information about solute and solvent polarities?

• Solubility can be predicted if both solute and solvent are non-polar.

• Solubility can be predicted if both solute and solvent are polar.

• Solubility can be predicted if solute and solvent have similar polarities.

• Solubility cannot be predicted from polarities.

What are electrostatic forces in the context of chemical bonding?

• Attractions between positive and negative charges

• Repulsions between like charges

• Forces that hold protons together

• Forces that separate atoms