Ch. 15 Water and Aqueous Solutions

Question 1

Interferes with hydrogen bonding between water molecules

Answer 1

Surfactant

Question 2

Dissolving medium

Answer 2

Solvent (Ex: Water)

Question 3

Homogeneous mixture of water and dissolved substances

Answer 3

Aqueous solution

Question 4

Compound that will conduct current in the liquid state or in aqueous solution

Answer 4

Electrolyte

Question 5

Mixture in which particle size averages between 1nm and 1000 nm

Answer 5

Colloid

Question 6

Dissolved particle

Answer 6

Solute

Question 7

Mixture in which particle size averages greater than 1000 nm in diameter

Answer 7

Suspension

Question 8

Chaotic movement of colloidal particles

Answer 8

Brownian motion

Question 9

Colloid of a liquid in a liquid

Answer 9

Emulsion

Question 10

What causes water’s low vapor pressure?

Answer 10

Hydrogen Bonding

Question 11

The bonds between the hydrogen and oxygen atoms in a water molecule are ___

Answer 11

Polar Covalent Bonds

Question 12

The fact that ice is less dense that water is related to the fact that ____

Answer 12

Ice has a molecular structure that is an open framework held together by hydrogen bonds`

Question 13

What is the term for the dissolving medium in a solution

Answer 13

Solvent Ex: water

Question 14

An emulsion is which type of mixture

Answer 14

colloid

Question 15

What is the size range of particles in a colloid?

Answer 15

Between Inm and 1000nm

Question 16

An emulsion is colloidal dispersion of a __

Answer 16

Liquid in a liquid

Question 17

What caused Brownian motion in colloids?

Answer 17

Molecules of the dispersion medium colliding with dispersed phase particles

Question 18

What is the electronegativity of Oxygen?

Answer 18

3.5

Question 19

What is the electronegativity of Hydrogen?

Answer 19

2.1

Question 20

What is the electronegativity of Water?

Answer 20

1.4

Question 21

What compound is most soluble?

Answer 21

Ionic compound Metal+Nonmetal