Chem Ch 11 States of Matter Test

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

• gas
• liquid
• solid
• substance

The process by which a solid becomes a liquid is

• freezing
• melting
• condensation
• sublimation

Tags

NGSS.MS-PS1-4

Which of the following has a melting point greater than room temperature?

• oxygen
• water
• iron
• bromine

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A solid with a low melting point is most likely

• ionic
• covalent
• metalic
• none of these

The strength of the forces between ions depends on

• the size of the ion only
• the charge on the ion only
• both the size and the charge
• neither the size, nor the charge

Tags

NGSS.HS-PS1-3

NGSS.HS-PS2-4

The attraction of the positive end of one molecule for the negative end of a neighboring molecule is a(n)

• covalent bond.
• dipole-dipole force.
• ionic bond.
• London dispersion force.

Because of dipole-dipole forces, the melting points of highly polar compounds are _____ those of less polar compounds.

• higher than
• lower than
• equal to
• not comparable to

A hydrogen bond is a special form of a(n)

• covalent bond.
• dipole-dipole force.
• ionic bond.
• London dispersion force.

London dispersion forces occur between molecules that are

• slightly polar
• nonpolar
• none of these

A London dispersion force is considered a dipole-dipole force because it

• affects all types of compounds
• affects nonpolar molecules
• affects polar molecules
• results from a temporary dipole