Chapter 3 AGUA

Question 1

Electronegativity

Answer 1

Describes the tendency of an atom or a functional group to attract electrons toward itself

Question 2

Polar covalent

Answer 2

Different in electronegativity across the molecule due to uneven sharing of e-

Question 3

Adhesion

Answer 3

Attraction between unlike substances

Question 4

Cohesion

Answer 4

Attraction between like substances based upon charge difference

Question 5

Is attraction a bond?

Answer 5

No, due to no interaction of valence e-

Question 6

Surface tension

Answer 6

Result of cohesion, H2O has high surface tension

Question 7

H2O molecule bending

Answer 7

104.5°

Question 8

Specific heat

Answer 8

Amount of E needed to raise the temperature of 1g of substance

Question 9

Water specific heat

Answer 9

4.186 joules/g*C

Question 10

pH is on what scale

Answer 10

-log[H+]

Question 11

Avagadros Nubmer

Answer 11

6.02x10^23

Question 12

Molarity

Answer 12

moles per liter

Question 13

Emergent Properties

Answer 13

New properties post chemical reaction

Question 14

Kinetic E

Answer 14

E of motion/movement

Question 15

Potential E

Answer 15

E of position, possesses the ability to move

Question 16

Temeprature

Answer 16

average thermal/kinetic E, not dependent upon volume

Question 17

Thermal E

Answer 17

total amount of Kinetic E, dependent on volume

Question 18

Evaporative cooling

Answer 18

H2O molecules with higher e are able to escape

Question 19

Transppiration

Answer 19

The exhalation of water vapor through the stomata

Question 20

calorie

Answer 20

Amount of heat it takes to raise the temperature of 1g of water 1C

Question 21

kilocalorie

Answer 21

Amount of heat required to raise the temperature of 1kg of water by 1C

Question 22

joule

Answer 22

Unit of E = 0.239 cal;
1 cal = 4.184