Properties of Water, Solute & Solubility & Saturated Terms, Compounds

Question 1

What are Elements?

Answer 1

A pure substance made of only one kind of atom

Question 2

What are Compounds?

Answer 2

substance formed by the chemical combination of two or more elements in definite proportions

Question 3

Heterogeneous Mixture

Answer 3

A mixture that is not uniform in composition; components are not evenly distributed throughout the mixture

Question 4

Homogeneous mixture (solution)

Answer 4

a mixture in which the composition is uniform throughout

Question 5

Solvent

Answer 5

A liquid substance capable of dissolving other substances

Question 6

Solute

Answer 6

A substance that is dissolved in a solution.

Question 7

Valence Electrons

Answer 7

Electrons on the outermost energy level of an atom

Question 8

Core Electrons

Answer 8

The electrons in the inner shells of an atom; these electrons are not involved in forming bonds.

Question 9

The Octet Rule

Answer 9

States that atoms lose, gain or share electrons in order to acquire a full set of eight valence electrons

Question 10

Intramolecular

Answer 10

within a molecule

Question 11

Metallic Bond

Answer 11

a bond formed by the attraction between positively charged metal ions and the electrons around them; Metal-Metal

Question 12

Polar Covalent Bond

Answer 12

A covalent bond in which electrons are not shared equally; Metal-Nonmetal

Question 13

Hydrogen Bond

Answer 13

weak attraction between a hydrogen atom and another atom

Question 14

Ion-Dipole

Answer 14

the charge of an ion is attracted to the partial charge on a polar molecule

Question 15

Dipole-Dipole

Answer 15

attractions between oppositely charged regions of polar molecules

Question 16

London Dispersion

Answer 16

The intermolecular attractions resulting from the constant motion of electrons and the creation of instantaneous dipoles

Question 17

The Universal Solvent

Answer 17

Water- due to its polarity and ability to dissolve many different solutes

Question 18

Cohesion

Answer 18

Attraction between molecules of the same substance

Question 19

Solubility

Answer 19

A measure of how much solute can dissolve in a given solvent at a given temperature.

Question 20

Saturated

Answer 20

Containing the highest amount of substance

Question 21

Supersaturated

Answer 21

a solution that holds more dissolved solute than is required to reach equilibrium at a given temperature

Question 22

Specific Heat

Answer 22

The amount of energy required to raise the temperature of 1 gram of a substance by 1 degree celcius

Question 23

Things That Effect Rate Of Dissolution

Answer 23

Agitation, Temperature, and Surface Area

Question 24

Nonpolar Covalent Bond

Answer 24

a covalent bond in which the electrons are shared equally by the two atoms; Nonmetal-Nonmetal

Question 25

Ionic Bond

Answer 25

Formed when one or more electrons are transferred from one atom to another; Metal-Nonmetal

Question 26

Intermolecular

Answer 26

between molecules

Question 27

ionic (electrostatic) interactions

Answer 27

Attraction (or repulsion) of charged molecules

Question 28

Surface Tension

Answer 28

the force that acts on the surface of a liquid and that tends to minimize the area of the surface

Question 29

Adhesion

Answer 29

An attraction between molecules of different substances

Question 30

Capillary Action

Answer 30

tendency of water to rise in a thin tube

Question 31

Aqueous

Answer 31

dissolved in or containing water

Question 32

Unsaturated

Answer 32

A solution that contains less than the maximum amount of dissolved solute in a concentration.