Chapter 3

Question 1

What are the four emergent properties of water?

Answer 1

1. Cohesive Behavior
2. Ability to moderate tempature
3. Expansion upon freezing
4. Versatility as a solvent

Question 2

What is cohesion?

Answer 2

When water molecules stick to other water molecules due to hydrogen bonding

Question 3

What is adhesion?

Answer 3

Attraction between different substances.

Question 4

What is surface tension?

Answer 4

Measure of diffuculty to strect or break the suface of a liquid

Hydrogen bonds give water a high surface tension

Question 5

What is heat?

Answer 5

Measure of total amount of kinetic energy due to molecular motion

Question 6

What is tempature?

Answer 6

Measure of intensity of heat due to the average kinetic energy of molecules mesured using Celsius degree

Question 7

What is specific heat?

Answer 7

Amount of heat that must be absorbed/lost for 1g to change its temp by 1C

Question 8

What is heat of vaporization?

Answer 8

The heat a liquid must absorb for 1g to be coverted to gas

Question 9

What is colloid?

Answer 9

Stable suspension of fine particles on a liquid

Question 10

What is an Acid?

Answer 10

Substance that increases the H concentration of a solution

Question 11

What is a base?

Answer 11

Substance that reduces the H convercentration of a solution

Question 12

How do buffer work?

Answer 12

They minimize changes in concentrations of H and OH in a solution