Science Unit Test 2

Front 1

gas changes to liquid

Back 1

condensation

Front 2

mass divided by volume

Back 2

density

Front 3

resistance to flow

Back 3

viscosity

Front 4

potential for a chemicla change

Back 4

chemical activity

Front 5

afterwards a new chemical is present,the chemical change

Back 5

chemical change

Front 6

definite volume, no definite shape

Back 6

liquid

Front 7

anything that flows

Back 7

fluid

Front 8

liquid changes to gas

Back 8

vaporization

Front 9

solid changes to liquid

Back 9

melting

Front 10

change of form, no chemical make- up

Back 10

physical change

Front 11

definite volume, definite shape

Back 11

solid

Front 12

two things combined together, not necessarily chemically

Back 12

mixture

Front 13

pure substance from the periodic table, can't be broken down further

Back 13

element

Front 14

liquid changes to a solid

Back 14

freezing

Front 15

chemically combined mixture

Back 15

solution

Front 16

pure substance made up of more than one element

Back 16

compound

Front 17

no definite shape, no definite volume

Back 17

gas

Front 18

solid changes directly to gas

Back 18

sublimation

Front 19

find the density : mass= 15g
volume = 9ml

Back 19

1.67 g/ml

Front 20

no charge, mass of 1, inside nucleus

Back 20

neutron

Front 21

+ 1 charge, mass of 1, inside nucleus

Back 21

proton

Front 22

- 1 charge, mass of 0, orbiting outside nucleus

Back 22

electron

Front 23

protons = what

Back 23

atomic #

Front 24

has no distinct charge

Back 24

non-polar

Front 25

larger amount in a solution, does the dissolving

Back 25

solvent

Front 26

+ 1 charge, mass of 1, inside nucleus

Back 26

proton

Front 27

- 1 charge, mass of 0, orbiting outside nucleus

Back 27

electron

Front 28

able to disslove in

Back 28

soluble

Front 29

protons = what

Back 29

atomic #

Front 30

something's ability to stick to other stuff

Back 30

adhesion

Front 31

has no distinct charge

Back 31

non-polar

Front 32

smaller amount in solution, gets dissolved

Back 32

saturated solution

Front 33

larger amount in a solution, does the dissolving

Back 33

solvent

Front 34

a chemically mixed, uniform mixture

Back 34

solotion

Front 35

+ 1 charge, mass of 1, inside nucleus

Back 35

proton

Front 36

able to disslove in

Back 36

soluble

Front 37

has both a positive and a negative side

Back 37

polar

Front 38

- 1 charge, mass of 0, orbiting outside nucleus

Back 38

electron

Front 39

protons = what

Back 39

atomic #

Front 40

something's ability to stick to other stuff

Back 40

adhesion

Front 41

has no distinct charge

Back 41

non-polar

Front 42

smaller amount in solution, gets dissolved

Back 42

saturated solution

Front 43

a chemically mixed, uniform mixture

Back 43

solotion

Front 44

larger amount in a solution, does the dissolving

Back 44

solvent

Front 45

able to disslove in

Back 45

soluble

Front 46

has both a positive and a negative side

Back 46

polar

Front 47

something's ability to stick to other stuff

Back 47

adhesion

Front 48

smaller amount in solution, gets dissolved

Back 48

saturated solution

Front 49

a chemically mixed, uniform mixture

Back 49

solotion

Front 50

has both a positive and a negative side

Back 50

polar

Front 51

something's ability to stick to itself

Back 51

cohesion

Front 52

mixture where particles can be easily separated

Back 52

suspension

Front 53

molecules stick together to form a thin, supportive layer

Back 53

surface tension

Front 54

salt water will have a ____ freezing point

Back 54

lower

Front 55

but salt water will have a ___ boiling point than fresh water

Back 55

higher

Front 56

a charged particle

Back 56

ion

Front 57

OH-

Back 57

hydroxide

Front 58

compound that changed color when reacted with an acid or base

Back 58

indicator

Front 59

one byproduct of neutralizing and acid or base

Back 59

salt

Front 60

H+

Back 60

hydrogen

Front 61

feels slippery

Back 61

base

Front 62

tastes sour

Back 62

acid

Front 63

turns litmus parer red

Back 63

acid

Front 64

turns litmus paper blue

Back 64

base

Front 65

tastes bitter

Back 65

base

Front 66

dissolves gats and oils

Back 66

base

Front 67

produces hydroxide ions in water

Back 67

base

Front 68

corrodes metals

Back 68

acid

Front 69

produces hydrogen ions in water

Back 69

acid

Front 70

2

Back 70

strong acid

Front 71

a charged particle

Back 71

ion

Front 72

OH-

Back 72

hydroxide

Front 73

compound that changed color when reacted with an acid or base

Back 73

indicator

Front 74

one byproduct of neutralizing and acid or base

Back 74

salt

Front 75

H+

Back 75

hydrogen

Front 76

feels slippery

Back 76

base

Front 77

tastes sour

Back 77

acid

Front 78

turns litmus parer red

Back 78

acid

Front 79

turns litmus paper blue

Back 79

base

Front 80

tastes bitter

Back 80

base

Front 81

dissolves gats and oils

Back 81

base

Front 82

produces hydroxide ions in water

Back 82

base

Front 83

corrodes metals

Back 83

acid

Front 84

produces hydrogen ions in water

Back 84

acid

Front 85

2

Back 85

strong acid

Front 86

atoms with the same number of protons but different # of neutrons

Back 86

isotopes

Front 87

any biological catalyst

Back 87

enzyme

Front 88

anything that slows down a chemical reaction

Back 88

inhibitor

Front 89

minimum amount of enerygy needed to start a chemical reaction

Back 89

activation energy

Front 90

anythingthat speeds up a chemical reaction

Back 90

catalyst

Front 91

the time needed for half of an isotope to decay

Back 91

half-life

Front 92

squiggly lines

Back 92

gamma

Front 93

2 protons 2 nneutrons

Back 93

alpha

Front 94

particle identical to an electron

Back 94

beta

Front 95

above line- ___ heat ____ and this reaction would happen faster in a ___ environment

Back 95

endothermic, absorbed, warmer