Properties of Water

Question 1

percentage of water in body

Answer 1

50-75%

Question 2

without it, water will be just a gas in room temp.

Answer 2

hydrogen

Question 3

water’s unique properties results from

Answer 3

intermolecular force - hydrogen bond

Question 4

5 properties of water

Answer 4

water as a solvent, cohesion/adhesion, density, specific heat capacity, heat vaporization

Question 5

Water molecules are also attracted to other polar molecules and to ions.

Answer 5

water as a solvent

Question 6

hydrophilic comes from

Answer 6

hydro - water
philic - loving

Question 7

hydrophobic comes from

Answer 7

hydro - water
phobic - fearing

Question 8

Attraction of other molecule of the same kind

Answer 8

cohesion

Question 9

Water molecules stick to each other.This is due to the hydrogen bonds among the molecules

Answer 9

cohesion

Question 10

Water molecules stick to each other.

This is due to the

Answer 10

hydrogen bond

Question 11

Attraction of other molecules of the different kind

Answer 11

adhesion

Question 12

Water molecules stick to other substances

Answer 12

adhesion

Question 13

Most plants have adapted to take advantage of water’s adhesion that helps move water from the roots to the leaves. this process is called?

Answer 13

capillary action

Question 14

This can also be seen as blood moves through our capillaries, carrying nutrients to each cell within our body.

Answer 14

capillary action

Question 15

the mass per unit of a substance

Answer 15

density

Question 16

density of water & ice

Answer 16

water - 1g/cm³
ice - 0.9168 g/cm³

Question 17

why does ice have lower density

Answer 17

due to hydrogen bonds oriented as it freezes

Question 18

which one floats? water or ice caps? why

Answer 18

ice caps - less dense

Question 19

the amount of heat needed to raise the temperature of one gram of a substance by one degree Celsius.

Answer 19

specific heat capacity

Question 20

the specific heat capacity of water is how many times greater than the sand

Answer 20

5 times

Question 21

which does heat faster? metal or water? why

Answer 21

metal - less energy to heat it up

Question 22

explain heat vaporization

Answer 22

water has high vaporization – hydrogen needs to break off as a gas first at room temp.