chem

Question 1

gasses

Answer 1

can change shape and change volume
they are fluid and compressible

Question 2

fluid

Answer 2

A substance that flows, deforms, and changes shape when subject to a force, or stress

Question 3

comprehensibility

Answer 3

the measure of how much a given volume of matter decreases when placed under pressure

Question 4

liquids

Answer 4

exhibit fluidity and lack compressibility

Question 5

liquid individual particle

Answer 5

do no not have fixed positions in the liquid

Question 6

liquid interparticle

Answer 6

forces of attraction limit the range of motion so particles remmain closely

Question 7

fluidity

Answer 7

the ability to flow

Question 8

properties of the liquid state

Answer 8

density, viscosity, surface tension, and capillary action

Question 9

density

Answer 9

the relationship between the mass of the substance and how much space it takes up

Question 10

Density of liquids

Answer 10

in most substances a liquid is less dense then its solid state
water is en execption

Question 11

Viscosity

Answer 11

is a measure of the resistance of a liquid to flow
viscosity relates to tem, forces between particles, and the shape of the particles

Question 12

surface tension

Answer 12

surface tension is the energy required to increase the surface area of a liquid
it is a measure of the inward pull by particles and forces in the interior of the liquid

Question 13

capillary action

Answer 13

capillary action is the movement of a liquid up or into a narrow tube due to adhesive and cohesive forces

Question 14

adhesion

Answer 14

attraction for unlike substances

Question 15

cohesion

Answer 15

attraction for like substances

Question 16

solids

Answer 16

exhibit a lack of fluidity and a lack of compressibility
organized particle arrangement
definite melting point

Question 17

forces of attraction in solids

Answer 17

the force of attraction between the particles in the solid are stronger then o substances that are liquid or gas phase under the same conditions
the stronger forces resist movement of the particles

Question 18

properties of solid state matter

Answer 18

crystal lattice, definite melting point, types of solids

Question 19

crystal lattice

Answer 19

all true solids have a crystal lattice structure, a regular repeating 3-D pattern of particles connected by forces of attraction
ex table salt(NaCl)

Question 20

definite melting point

Answer 20

when enough energy is added the lattice falls apart and the solid melts
the temp where this change occurs is called the melting point or freeezing point

Question 21

solids are classified

Answer 21

by the type of forces holding the particles together

Question 22

ionic solids

Answer 22

made of ions( M+Nm

Question 23

Metallic solids

Answer 23

metal atoms(M+M)

Question 24

Network solids

Answer 24

these solids are rare and are formed from atomms covantley bonded to each other throughout the entire structure-one huge molecule- like diamond or graphite

Question 25

Molecular Solids

Answer 25

the type of solid is composed of covalent molecules that re attached to each other through intermoleculer forces of attraction- ice(solid water) and sugar are ex

Question 26

Hydrates

Answer 26

hydrates are solid crystals that contain water molecules chemically combined in a definite ration, these are solids

Question 27

Hygroscopic solids

Answer 27

Hygroscopic solids spontaneously absorb water from the air theya re often used as desiccants( induce or sustain a state of dryness) ex silicates and clays

Question 28

Deliquescent solids

Answer 28

spontaneously absorb so much water from the air that they will dissolve themselves ex CaCl2

Question 29

Amorphus Solids

Answer 29

amorphus solids do not have a regular crystal lattice structure theya re offten considered liquids with high viscosity

Question 30

endothermic changes

Answer 30

these changes require energy to be added to weaken or break the attraction between particles

Question 31

melting

Answer 31

solid to liquid

Question 32

vaporization

Answer 32

liquid to gas -evaporation occurs at the surface of the liquid over all tempatures where liquid exist -boiling occurs at a specific tempature and pressure the vapor pressure of the liquid must equa the atmospheric pressure

Question 33

Sublimation

Answer 33

solid to gas

Question 34

exothermic changes

Answer 34

energy removed these changes require that energy be removed from the sample which permits forces of attraction to form and hold the particles together

Question 35

condensation

Answer 35

gas to liquid

Question 36

Deposition

Answer 36

gas to solid