2.5 Bio 2 Study Guide

Question 1

Cohesion

Answer 1

H Bonding between H2O molecules. Water molecules stick to each other.

Question 2

Adhesion

Answer 2

H Bonding between H2O and other substances. Water sticking to other substances.

Question 3

Solvent

Answer 3

Solvents dissolve solutes creating solutions.

Question 4

Specific Heat

Answer 4

The heat required to raise temperature of a substance by 1* Celcius.

Question 5

Heat Vaporization

Answer 5

Water vaporizing from your own thermal energy.

Question 6

Concentration

Answer 6

The amount of solute in a solution. EX: The amount of salt in a liquid. A substance becomes more concentrated when less water is present.

Question 7

pH

Answer 7

Measures [H3O+] on a logarithmic scale
-log[H3O+]

Question 8

pOH

Answer 8

Measures [OH-] on a logarithmic scale
-log[OH-]

Question 9

Hydroxide ion

Answer 9

OH- ion - consists of one hydrogen and one oxygen

Question 10

Hydronium ion

Answer 10

H30+ ion - consists of one oxygen and three hydrogen.

Question 11

Acid + Base

Answer 11

Acid - H30 > OH
Base - H30 < OH
Neutral - H30 =
OH