water

Question 1

what does water exist in

Answer 1

liquid, solid,and gases

Question 2

what happens to liquids when its put in a shape

Answer 2

it takes the shape

Question 3

in gas how are the molecules

Answer 3

more spread out

Question 4

is water a polar or non polar molecule

Answer 4

polar

Question 5

water molecules

Answer 5

2 hydrogen 1 oxygen
polar
can have hydrogen bonds

Question 6

properties of water

Answer 6

1. cohesive behavior
2. ability to moderate water
3. ability to expand
4. versatality as a solvent

Question 7

cohesive behavior

Answer 7

ability to stick together

Question 8

cohesion

Answer 8

ability to hold things together

Question 9

adhesion

Answer 9

ability for molecules to stick to other surfaces

Question 10

ability to moderate water

Answer 10

water can absorb or release heat

Question 11

kenetic energy

Answer 11

energy of motion

Question 12

potential energy

Answer 12

item has potential to move

Question 13

thermal energy

Answer 13

kenetic energy that is accosiated with random movement of atoms and molecules

Question 14

temp

Answer 14

measurement of average kenetic energy of molecule

Question 15

heat

Answer 15

transfer of thermal energy from one thing to another

Question 16

how do you measure energy and heat

Answer 16

calerie and joule

Question 17

calorie

Answer 17

amount of heat that is needed to raise temp

Question 18

joule

Answer 18

1 joule= 0.239 calorie

Question 19

other example of measuring heat

Answer 19

celcius, calvin and fair and height

Question 20

what measurement is thermal energy measured in

Answer 20

calorie or joule

Question 21

specific heat of a substance

Answer 21

the amount that must be observe to change its temp

Question 22

the specific heat of water

Answer 22

1 calorie per gram per celcius

Question 23

what is water

Answer 23

the solvent of life

Question 24

solute

Answer 24

the substance thats going to be disolve

Question 25

solute+solvent=

Answer 25

solution

Question 26

is hydrogen + or -

Answer 26

partially +

Question 27

is oxygen + or -

Answer 27

partilly -

Question 28

how does a solution happen

Answer 28

bc water is polar and h is partially +and oxygen is partially - the sodium breaks down of and go to the + and chlorine goes to the - and that forms a solution

Question 29

hydrophilic

Answer 29

does not like water

Question 30

ex of hydrophilic

Answer 30

oil

Question 31

why can water transport against gravity

Answer 31

bc of their ability to stick together

Question 32

surface tention

Answer 32

measure of how hard its to break the surface of liquids

Question 33

what is evaporation

Answer 33

liquid- gas

Question 34

heat of evaporization

Answer 34

amount of heat liquids must absorb from water to be transformed into a gas

Question 35

what happens during evaporation cooling

Answer 35

the remaining parts cool down

Question 36

why does ice float in liquid water

Answer 36

bc of the hydrogen bonds in ice are more organized it makes ice less dense then water

Question 37

density

Answer 37

mass over volume

Question 38

does ice have a higher or lower density

Answer 38

lower

Question 39

what degree is it where water has greatest density

Answer 39

4 degree celcius

Question 40

do hydrogen ion loose or gain protons

Answer 40

loos

Question 41

acids

Answer 41

give h+ions
increases concentration of a solution
lower # stronger it is

Question 42

bases

Answer 42

in water gives of oh+ ions
decreases the concentration of a solution
higher # stronger it is

Question 43

Ph

Answer 43

to calculate to known concentration of H+ ions

Question 44

buffers

Answer 44

middle group between acids and bases

contain weak acid and weak base