States of Matter Review

According to the kinetic-molecular theory, what is the behavior of gas particles?

• They are stationary

• They move in a straight line

• They are attracted to each other

• They are in constant, random motion

What is an elastic collision?

• A collision where kinetic energy is lost

• A collision where particles stick together

• A collision where no kinetic energy is lost

• A collision where particles repel each other

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What is diffusion?

• The movement of one material through another

• The escape of a gas through a tiny opening

• The flow of gases past each other

• The compression and expansion of a gas

Tags

NGSS.MS-PS3-5

According to Graham's law of effusion, the rate of effusion for a gas is inversely proportional to:

• The square root of its molar mass

• Its temperature

• Its pressure

• Its volume

What is the SI unit of pressure?

• Newton (N)

• Pascal (Pa)

• Atmosphere (atm)

• Kilopascal (kPa)

What is the instrument used to measure atmospheric air pressure?

• Barometer

• Manometer

• Thermometer

• Hydrometer

According to Dalton's law of partial pressures, the total pressure of a mixture of gases is equal to:

• The sum of the pressures of all the gases in the mixture

• The average of the pressures of all the gases in the mixture

• The highest pressure of any gas in the mixture

• The lowest pressure of any gas in the mixture

Which of the following is an example of dipole-dipole forces?

• Dispersion forces

• Hydrogen bonds

• Attractions between oppositely charged regions of polar molecules

• Forces that result from temporary shifts in the density of electrons in electron clouds

What are hydrogen bonds?

• Strong forces that occur between oppositely charged regions of polar molecules

• Weak forces that result from temporary shifts in the density of electrons in electron clouds

• Special dipole-dipole attractions that occur between molecules containing a hydrogen atom bonded to a small, highly electronegative atom with at least one lone electron pair

• Forces that hold particles together in ionic, covalent, and metallic bonds

Tags

NGSS.MS-PS1-1

Which of the following is an example of an intramolecular force?

• Dispersion forces

• Dipole-dipole forces

• Hydrogen bonds

• Covalent bonds

Tags

NGSS.HS-PS1-2