Kinetic Molecular Energy

Question 1

are in constant, rapid, random motion in a straight line.

Answer 1

Gas

Question 2

distances between molecules are so great (compared with their diameters) that at ordinary temperatures and pressures (say, 25°C and 1 atm), there is no appreciable interaction between the molecules

Answer 2

Gas

Question 3

collide with each other and with their containers in an elastic manner.

Answer 3

Gas

Question 4

lack of strong forces of attraction between molecules also allows a _______ to expand to fill the volume of its container.

Answer 4

Gas

Question 5

held together by one or more types of attractive forces.

Answer 5

Liquid

Question 6

though held by attractive also have a sufficient amount of kinetic energy to overcome partially the attractive forces among them— _______ molecules slide past freely on one another.

Answer 6

Liquid

Question 7

empty space between ______ molecules are so small, that makes _______ hard to compress.

Answer 7

Liquid

Question 8

have a definite shape and volume

Answer 8

Solid

Question 9

A state of matter that has no definite shape but has a definite volume.

Answer 9

Liquid

Question 10

A state of matter with no definite shape or volume

Answer 10

Gas

Question 11

have ordered arrangements of particles with a very restricted range of motion.

Answer 11

Solid

Question 12

cannot move freely past one another so they only vibrate about fixed positions.

Answer 12

Solid

Question 13

particles are so close together, thus _______ are have a definite shape, and nearly incompressible and are very dense relative to gases.

Answer 13

Solid

Question 14

The energy of the particles in a _______ is less than the energy of particles in liquid or gas.

Answer 14

Solid

Question 15

refer to the forcesbetweenindividual particles (atoms, molecules, ions) of a substance. “Force that holds” the particles in solids and in liquids.

Answer 15

Intermolecular forces

Question 16

are forces of attraction or bondswithincompounds, that is, covalent and ionic.

Answer 16

Intramolecular forces

Question 17

are attractive forces between polar molecules, that is, between molecules that possess dipole moments.

Answer 17

Dipole-dipole

Question 18

attractive forces that arise as a result of temporary dipoles induced in atoms or molecules

Answer 18

Dispersion force

Question 19

the separation of positive and negative charges in the atom (or nonpolar molecule) is due to the proximity of an ion or a polar molecule.

Answer 19

Induced dipole

Question 20

the ease with which the electron distribution in an atom can be dispersed.

Answer 20

Polarizability

Question 21

The ability of an atom to attract electrons toward itself in a chemical bond.

Answer 21

Electronegativity

Question 22

A special type of dipole-dipole interaction between the hydrogen atom in a polar bond, and an electronegative O, N, or F atom.

Answer 22

Hydrogen bonding