Chemistry Final Review

Question 1

Homogeneous mixture

Answer 1

completely blended

Question 2

Hypothesis

Answer 2

if than statement, educated guess

Question 3

Qualitative

Answer 3

Opiniated basically

Question 4

density

Answer 4

mass in an object
mass/unit volume

Question 5

extensive property

Answer 5

property depending on mass of object (volume, mass, etc.)

Question 6

physical change

Answer 6

a change that changes the appearance, not the chemical properties (bending metal)

Question 7

accuracy

Answer 7

how close a measurement is to the intended value

Question 8

significant figure

Answer 8

the amount of digits represented based on previous calculations

Question 9

metal

Answer 9

elements that have luster and conduct energy/heat. Generally ductile

Question 10

ductile

Answer 10

bendable into thin wire

Question 11

theory

Answer 11

generally accepted ideas

Question 12

quantitative

Answer 12

number based results

Question 13

heterogeneous mixture

Answer 13

mixture where individual parts are visible (salad)

Question 14

physical property

Answer 14

appearance

Question 15

intensive propterty

Answer 15

properties that do not rely on mass (can be color, smell, etc.)

Question 16

sublimination

Answer 16

solid to gas, w/o passing through liquid state

Question 17

precision

Answer 17

how close numerous results are to each other

Question 18

group (family)

Answer 18

columns

Question 19

metalloid

Answer 19

have both properties of metals and nonmetals; zigzag line on table

Question 20

inference

Answer 20

conclusion from information that doesn’t state the conclusion

Question 21

pure substance

Answer 21

all one thing in the mixture

Question 22

solution

Answer 22

homogenous mixture mixted to limit of solubility

Question 23

chemical property

Answer 23

property that is revealed during or after a reaction

Question 24

chemical change

Answer 24

change in chemical composition

Question 25

System International

Answer 25

global system of measurement

Question 26

percent error

Answer 26

how close a lab result is to accepted result

Question 27

period (series)

Answer 27

side to side rows on table

Question 28

malleable

Answer 28

moldable

Question 29

Democritus | contribution

Answer 29

theorized existance of atoms

Question 30

John Dalton | year, contribution

Answer 30

1808; accepted existence of atoms, billard ball model

Question 31

JJ Thomson | year, model type, contribution

Answer 31

1904; plum pudding model, electrons discovered

Question 32

Milikin

Answer 32

electron charge, oil drop experiment

Question 33

Quantum Mechanical model | year, people, contribution

Answer 33

1920; Einstein, Schrödinger, etc., orbitals discovered

Question 34

Rutherford | year, model, experiment, contribution

Answer 34

1911; nuclear model, goldfoil experiment discovered nucleus

Question 35

Bohr | year, model, contribution

Answer 35

1913; solar system model, orbits discovered

Question 36

HC2H3O2

Answer 36

acetic acid

Question 37

Co2S3

Answer 37

Cobalt (III) sulfide

Question 38

Pb3(PO4)2

Answer 38

Lead (II) phosphate

Question 39

Sr3N2

Answer 39

Stronium nitride

Question 40

Na2CrO4

Answer 40

Sodium chromate

Question 41

NH4NO2

Answer 41

Ammonium nitrite

Question 42

sulfur difluoride

Answer 42

SF2

Question 43

lithium nitride

Answer 43

Li3N

Question 44

ammonium acetate

Answer 44

NH4C2H3O2

Question 45

mercury (I) chloride

Answer 45

Hg2Cl2

Question 46

sodium dichromate

Answer 46

Na2Cr2O7

Question 47

nitrous acid

Answer 47

HNO2

Question 48

zinc sulfide

Answer 48

ZnS

Question 49

sodium dihydrogen phosphate

Answer 49

NaH2PO4

Question 50

Oxidation

Answer 50

loss of electrons

Question 51

reduction

Answer 51

gain electrons

Question 52

synthesis reaction

Answer 52

multiple compounds react to form one compound

Question 53

decomposition reaction

Answer 53

one compound reacts to form multiple compounds

Question 54

single displacement reaction

Answer 54

one element replaces another

Question 55

light travels like a ___ and strikes like a ___

Answer 55

wave; particle

Question 56

light is separated into colors using a ___

Answer 56

diffraction grating or prism

Question 57

the distance between crests or troughs is ___

Answer 57

wavelength

Question 58

height of the wave is ___

Answer 58

amplitude

Question 59

number of crests passing through a point per second is ___

Answer 59

frequency

Question 60

wavelength units are

Answer 60

meters

Question 61

frequency unit

Answer 61

Hertz, Hz, s^-1

Question 62

relationship between frequency and energy

Answer 62

higher frequency = higher energy

Question 63

relationship between frequency and wavelength

Answer 63

high frequency = short wavelength

Question 64

photon

Answer 64

bundle of energy

Question 65

number of energy to frequency

Answer 65

Planck's constant

Question 66

electron goes from ground to excited state in ___ spectrum

Answer 66

absorption

Question 67

spectrum for prism with white light or rainbow is

Answer 67

continuous spectrum

Question 68

color with longest wavelength

Answer 68

color with highest frequency

Question 69

order of types of light of increasing energy and frequency

Answer 69

radio, microwave, infrared, visible, UV, x-ray, gamma