Chapter 7

Question 1

Suspension

Answer 1

A mixture in which particles of a material are more or less evenly dispersed throughout a liquid or gas.

Question 2

Colloid

Answer 2

A mixture consisting of tiny particles that are intermediate in size between those in solutions and those in suspensions and that are suspended in a liquid, solid or gas.

Question 3

Emulsion

Answer 3

Any mixture of two or more immiscible liquids in which one liquid is dispersed in the other.

Question 4

Solution

Answer 4

A homogeneous mixture of two or more substances uniformly dispersed throughout a single phase.

Question 5

Solute

Answer 5

The substance that dissolves in the solvent.

Question 6

Solvent

Answer 6

The substance in which the solute dissolves.

Question 7

Alloy

Answer 7

A solid or liquid mixture of two or more metals.

Question 8

Heterogeneous mixture

Answer 8

A mixture that is not uniformly mixture

Question 9

Decanting

Answer 9

Too separate two immiscible liquids carefully pour the less dense liquid off the top.

Question 10

Immiscible

Answer 10

No matter what you do, the substances won’t mix

Question 11

Tyndall effect

Answer 11

Particles in a colloid are large enough to scatter light that passes through the colloid

Question 12

Polar compound

Answer 12

A molecule that has an uneven distribution of electrons.

Question 13

Hydrogen bonding

Answer 13

The force occurring when a hydrogen atom that is bonded to a highly electronegative atom of one molecule is attracted to two unshared electrons of another molecule.

Question 14

Non-polar compound

Answer 14

A compound whose electrons are equally distributed among its atom

Question 15

Solubility

Answer 15

The maximum amount of a solute that will dissolve in a given quantity of solvent at a given temperature and pressure

Question 16

Concentration

Answer 16

The quantity of solute dissolved in a given volume of solution.

Question 17

Unsaturated solution

Answer 17

A solution that contains less solute than a saturated solution does and that is able to dissolve additional solute.

Question 18

Saturated solution

Answer 18

A solution that cannot dissolve any more solute under the given conditions

Question 19

Supersaturated solution

Answer 19

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

Question 20

Molarity

Answer 20

An expression of the concentration of a solution in moles of dissolved solute per liter of solution.

Question 21

Insoluble

Answer 21

Some substances that do not dissolve

Question 22

Soluble

Answer 22

Substances that dissolve easily in water

Question 23

Dilute

Answer 23

A solution that contains only a small amount of solute