Unit 1 : The Chemistry of Water

Question 1

an aggregation of atomic nuclei and electrons that is sufficiently stable to possess observable properties

Answer 1

molecule

Question 2

the tendency for water molecules to stick together.

Answer 2

Cohesion

Question 3

The cohesive forces between water molecules are responsible for the phenomenon known as

Answer 3

Surface Tension

Question 4

the bonding of a water molecule to another substance, such as the sides of a leaf’s veins.

Answer 4

Adhesion

Question 5

is a homogeneous mixture of two or more substances

Answer 5

Solution

Question 6

only one phase; no part is separated by another by a detectable boundary.

Answer 6

Homogeneous

Question 7

dissolved substance; present in smaller amount

Answer 7

Solute

Question 8

dissolving medium; present in greater amount

Answer 8

Solvent

Question 9

amount of solute that can be dissolved in a given amount of solvent at a specific temperature; usually expressed as grams of solute per 100 grams of solvent

Answer 9

Solubility

Question 10

substance that dissolves in the solvent

Answer 10

Soluble

Question 11

substance that does not dissolve in the solvent

Answer 11

Insoluble

Question 12

dissolve in any amount in each other

Answer 12

Miscible

Question 13

have limited solubility in each other

Answer 13

Partially Miscible

Question 14

do not dissolve in each other and forms two separate layers upon mixing

Answer 14

Immiscible

Question 15

a solution that can still take more of the solute in addition to what it already contains; less concentrated than a saturated solution

Answer 15

Unsaturated solution

Question 16

contains the maximum amount of solute that can be dissolved in the given amount of solvent; contains the maximum amount of dissolved solute necessary for the existence of an equilibrium between dissolved and undissolved solute

Answer 16

Saturated Solution

Question 17

contains more of the solute that it normally contains at an elevated temperature; more concentrated than a saturated solution

Answer 17

Supersaturated solution

Question 18

amount of solute present in a specified amount of solvent or solution

Answer 18

concentration

Question 19

contains greater amount of solute

Answer 19

Concentrated solution

Question 20

contains lesser amount of solute; concentrated solution + water

Answer 20

Dilute solution