Ch.2 Pt2

Question 1

Solution

Answer 1

a liquid that is a homogenous mixture of substances

Question 2

Solvent

Answer 2

the dissolving agent of a solution

Question 3

Solute

Answer 3

the substance that is dissolved

Question 4

Aqueous solution

Answer 4

one in which water is the solvent

Question 5

Why is water a versatile solvent

Answer 5

due to its polarity, which allows it to form hydrogen bonds easily.

Question 6

hydration shell

Answer 6

when an ionic compound is dissolved in water, each ion is surrounded by a sphere of water molecules.

Question 7

Ion

Answer 7

an atom or molecule with a net electric charge due to the loss or gain of one or more electrons

Question 8

Colloid

Answer 8

a stable suspension of fine particles in a liquid.

Question 9

Hydrogen Ion (H+)

Answer 9

When the hydrogen atom leaves its electron behind and is transferred as a proton

Question 10

Hydronium Ion (H3O+)

Answer 10

The molecule with an extra proton

Question 11

Hydroxide Ion (OH-)

Answer 11

The molecule that lost the proton

Question 12

Water dynamic equilibrium

Answer 12

a state in which water molecules dissociate at the same rate at which they are being reformed.

Question 13

Acid

Answer 13

any substance that increases the H+ concentraton of a solution

Question 14

Base

Answer 14

Any substane that reduces the H+ concentration of a solution

Question 15

Ocean acidification

Answer 15

CO2 dissolved in sea water forms carbonic acid

Question 16

Acid precipitation

Answer 16

rain, fog, or snow with a pH lower than 5.2

Question 17

Ph scale

Answer 17

Measures the concentration of hydrogen ions (H+) in a solution

Question 18

CO2

Answer 18

O=C=O