Properties of Water

Question 1

How many hydrogen bonds can water make?

Answer 1

4

Question 2

What are the properties of water?

Answer 2

• cohesion & adhesion
• low density solid
• high specific heat capacity
• high heat of vaporization and fusion
• solubility: a good solvent
• ionization: determines pH

Question 3

cohesion definition

Answer 3

the clinging of a substance to itself

water: hydrogen bonds between water molecules holding water together

Question 4

adhesion definition

Answer 4

the clinging of one substance to another

Question 5

at what temp is water most dense?

Answer 5

4 degree celsius

Question 6

relevence of low density

Answer 6

ice freezes on top of lake allowing water to stay at 4 degrees celsius

Question 7

relevance of high specific heat capacity

Answer 7

helps organims maintain constant body temperature,

large bodies of water have moderating effect on nearby land temp

Question 8

heat of vaporization definition

Answer 8

amount of heat a liquid must absorb to be converted to a gas

Question 9

heat of fusion

Answer 9

amount of heat a solid most absorb to be converted to a liquid

Question 10

significance of high heat of vaporization

Answer 10

sweating