Properties of Water

Question 1

uneven distribution of positive and negative electrons

Answer 1

polar

Question 2

even distribution of positive and negative electrons

Answer 2

nonpolar

Question 3

like molecules bonding to each other

Answer 3

cohesion

Question 4

helps pull water up through microscopic vessels

Answer 4

capillary action

Question 5

the attraction of molecules of one kind for molecules of a different kind

Answer 5

adhesion

Question 6

a measure of how hard it is to break the surface of a liquid

Answer 6

surface tension

Question 7

the amount of heat that must be absorbed or lost for 1 gram of that substance to change its temperature by 1 degree Celcius

Answer 7

specific heat

Question 8

heat is absorbed when…

Answer 8

when hydrogen bonds break

Question 9

heat is released when…

Answer 9

when hydrogen bonds form

Question 10

-the transformation of a liquid to a gas
-requires energy
-sweating cools the body as heat energy from the body changes sweat into a gas

Answer 10

evaporative cooling

Question 11

• so many substances dissolve in water
• the different regions of the polar water molecule can interact with ionic compounds called solutes and dissolve them

Answer 11

universal solvent

Question 12

-likes water
- polar/ionic
- carbs and salts

Answer 12

hydrophilic molecules

Question 13

-doesn’t like water
-nonpolar
-lipids

Answer 13

hydrophobic molecules