2.2 – Properties Of Water

Question 0

polar molecules have slightly_regions

Answer 0

charged

Question 1

water is an_molecule

Answer 1

polar

Question 2

_Molecules do not have charged regions

Answer 2

Nonpolar

Question 3

Nonpolar molecules have_specific heat

Answer 3

high

Question 4

water absorbs heat but stays relatively_

Answer 4

cool

Question 5

what is cohesion?

Answer 5

when like molecules stick together

Question 6

what is adhesion?

Answer 6

when water molecule stick to other things

Question 7

a_is formed when one substance dissolves in another

Answer 7

solution

Question 8

A solution is a_mixture

Answer 8

homogeneous

Question 9

_Dissolve in other substances

Answer 9

solvents

Question 10

_Dissolve in a solvent

Answer 10

solutes

Question 11

a_releases a hydrogen ion when it dissolves in water

Answer 11

acid

Question 12

_
– High H+ concentration
– PH less than seven; lower the number the more acidic

Answer 12

acid

Question 13

a_Removes hydrogen ions from a solution

Answer 13

base

Question 14

_
– Low H+ concentration
– PH greater than seven; higher the number the more basic

Answer 14

base

Question 15

a_solution has a pH of 7

Answer 15

neutral

Question 16

what is an example of a neutral solution or a solution that has a pH of 7?

Answer 16

pure water

Question 17

all living organisms contain_; because of this they are said to be organic

Answer 17

carbon

Question 18

_ the only element that can support life as we know it

Answer 18

carbon

Question 19

carbon can easily bond to each other; forming_chains,chains and. It has four bonding sites

Answer 19

1. straight
2. branched
3. rings

Question 20

_Are the largest molecules in living organisms

Answer 20

macromolecules

Question 21

_Are the smallest unit that a macromolecule can be broken down into

Answer 21

monomer

Question 22

what are the four macromolecules?

Answer 22

carbohydrates, lipids and fats, proteins, nucleic acid

Question 23

_
– Supply energy; found in plants
– Monomer=a monosaccharide (most common is glucose. C6H12O6)
– Polysaccharide=Starches
– Disaccharide=sucrose

Answer 23

carbohydrates

Question 24

animal store, carbohydrates as glycogen; plant store them as_( cellulose in a cell wall )

Answer 24

starch

Question 25

_
– Store energy
– Used to form biological membranes
– Structural unit=3 fatty acid and glycerol

Answer 25

lipids, or fats and oils

Question 26

what are the three types of fats?

Answer 26

polyunsaturated fats, unsaturated fat and saturated fats

Question 27

_
– contain the maximum number of hydrogen-carbon based molecules( form cholesterol in arteries)
– Meat products

Answer 27

saturated fat’s

Question 28

_
– Many double bonds
– Canola oil/olive oil

Answer 28

polyunsaturated fat’s

Question 29

_
– contain one or more double bonds; have less hydrogen molecule
– Oil/vegetable

Answer 29

unsaturated fat

Question 30

_Acids are liquid oils I have been hydrogens to form a solid at room temperature, the body does not recognize them, because they’re not natural, so the body treats them like saturated fatty acid’s

Answer 30

Transfatty acids