exam 2 review quizizz

What is polarity in chemistry?

• • A measure of mass

• • A measure of charge separation

• • A measure of temperature

In a polar molecule, what happens to the electron distribution?

• • Electrons are evenly distributed

• • Electrons are shared unequally

• • Electrons are lost

What is the shape of a water molecule (H2O)?

• • Linear

• • Tetrahedral

• • Bent

Which of the following molecules is nonpolar?

• • NH3

• • CH4

• • HCl

Which intermolecular force is the strongest?

• • London dispersion forces

• • Hydrogen bonding

• • Ionic bonding

• • Van der Waals forces

Which of the following substances is held together by London dispersion forces?

• • H2O

• • CH4

• • NaCl

• • NH3

Which type of intermolecular force is present in all molecules and atoms?

• • Hydrogen bonding

• • Dipole-dipole interactions

• • London dispersion forces

• • Ionic bonding

What type of intermolecular force occurs between a hydrogen atom and a highly electronegative atom like oxygen or nitrogen?

• • London dispersion forces

• • Dipole-dipole interactions

• • Hydrogen bonding

• • Ionic bonding

In which of the following substances does hydrogen bonding play a significant role?

• • H2O

• • He

• • O2

• • NaCl

What is vapor pressure?

• • The pressure of a liquid inside a sealed container

• • The pressure of a gas above a liquid in a closed system

• • The pressure of a solid in a gaseous state

• • The pressure of a gas in an open container