Chem Quiz

Front 1

Surface tension

Back 1

An inward force that tends to minimize the surface area if a liquid

Front 2

Surfactant

Back 2

Any substance that reduces surface tension

Front 3

Dissolution

Back 3

When a substance is placed in contact with a solvent

Front 4

Aqueous solution

Back 4

Water that contains dissolved substances

Front 5

Solvent

Back 5

The dissolving medium

Front 6

Solute

Back 6

The dissolved particles in a solution

Front 7

Solvation

Back 7

The process by which the positive and negative ions of an ionic solid become surrounded by solvent molecules

Front 8

Electrolyte

Back 8

A compound that conducts an electric current when it is in an aqueous solution

Front 9

Nonelectrolyte

Back 9

A compound that does not conduct an electric current in either an aqueous solution or the molten state

Front 10

Strong electrolyte

Back 10

A solution in which a large portion of the solute exists as ions

Front 11

Weak electrolyte

Back 11

A solution that conducts electricity poorly

Front 12

Water of hydration

Back 12

The water contained in a crystal

Front 13

Hydrate

Back 13

A compound that contains water of hydration

Front 14

Anhydrous

Back 14

A substance that doesnt contain water

Front 15

Effloresce

Back 15

To lose water of hydration

Front 16

Hygroscopic

Back 16

Compounds that remove moisture from the air

Front 17

Desiccant

Back 17

A substance used to absorb moisture from the air and create a dry atmosphere

Front 18

Deliquescent

Back 18

Compounds that remove sufficient water from the air to dissolve completely and form solutions

Front 19

Suspension

Back 19

A mixture from which particles settle out upon standing

Front 20

Colloid

Back 20

A heterogenous mixture containing particles that range in size from 1nm to 1000nm

Front 21

Tyndall effect

Back 21

The scattering of visible light by colloidal particles

Front 22

Brownian motion

Back 22

The chaotic movement of colloidal particles

Front 23

Emulsion

Back 23

A colloidal dispersion of a liquid in a liquid

Front 24

Saturated solution

Back 24

A solution that contains the maximum amount of solute for a given quantity of a solvent at a given temperature and pressure

Front 25

Solubility

Back 25

The amount of solute that dissolves in a given quantity of a solvent

Front 26

Unsaturated solution

Back 26

A solution that contains less solute than a saturated solution at a given temperature and pressure

Front 27

Miscible

Back 27

Two liquids that dissolve in each other in all proportions

Front 28

Immiscible

Back 28

Liquids that are insoluble in one another

Front 29

Supersaturated solution

Back 29

A solution that contains more solute than it can theoretically hold at a given temperature

Front 30

Henry's law

Back 30

States that at a given temperature, the solubility of a gas in a liquid is directly proportional to the pressure of the gas above a liquid