ap bio water and hydorgen bonding

Question 1

water has what type of bonds?

Answer 1

. polar covalent bonds
. hydrogen bonds

Question 2

what elements does water have?

Answer 2

2 elements of hydrogen and one oxygen

Question 3

oxygen has what charge?

Answer 3

negative

Question 4

hydrogen has a what charge?

Answer 4

partial positive

Question 5

hydrogen bond:

Answer 5

forms btwn positive hydrogen and negative oxygen

Question 6

what causes polar molecules?

Answer 6

uneven distribution

Question 7

in liquid

Answer 7

hydrogen bonds break and reform

Question 8

in solid/frozen

Answer 8

hydrogen bonds are stable, farther apart, less dense ( why ice floats)

Question 9

cohesion

Answer 9

water is attracted to water

Question 10

cohesion example

Answer 10

allowing the water droplets to stick together in a stream to go up the roots

Question 11

adhesion

Answer 11

water attracted to other polar or charged things

Question 11

adhesion example

Answer 11

allows the water molecules to stick to the plant walls

Question 11

transpiration

Answer 11

loss of water from a plant due to water vapor

Question 12

hydrophilic

Answer 12

attracts water

Question 13

hydropobic

Answer 13

avoids water

Question 14

surface tension

Answer 14

due to cohesion and adhesion
difficulty in breaking the surface of the water

Question 15

specific heat

Answer 15

the amount of energy it takes to raise or lower a temperature

Question 16

surface tension example

Answer 16

droplet of water on a blade of grass
bugs walking on water

Question 17

high heat of vaporization

Answer 17

the amount of energy to convert 1g or a substance from a liquid to a gas

Question 18

crystal lattice

Answer 18

argemnat of atoms
water to soilid

Question 19

cellar resperation

Answer 19

transport nutrints
chemcial reactions
osmoisi
diffsion