Chemistry 161 Review

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heterogeneous mixture

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355 Terms

1

heterogeneous mixture

Composed of different kinds, diverse

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2

homogeneous mixture

type of mixture in which the individual substances are evenly mixed

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3

Law of Conservation of Mass

Matter is not created nor destroyed in any chemical or physical change

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4

Accuracy

A description of how close a measurement is to the true value of the quantity measured.

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5

Percision

The degree of exactness of a measurement

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6

significant figures

include all known digits plus one estimated digit

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7

Tetra (t)

10<12

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8

Giga (G)

10^9

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9

Mega (M)

10^6

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10

kilo (k)

10^3

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11

hecto (h)

10^2

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12

deka (da)

10^1

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13

centi (c)

10^-2

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14

deci (d)

10^-1

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15

centi (c)

10^-2

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16

Milli (m)

10^-3

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17

length

cm

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18

time

s

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19

mass

kilograms

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20

volume

L

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21

amount of a substance

mol

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22

K=

273.15

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23

temprature

K

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24

Physical matter

goes thru phase changed

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25

chemical matter

element compound mixture

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26

Chemistry

The study of the properties of matter and how matter changes

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27

scientific law

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28

scientific theory

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29

scientific hypothesis

An educated guess that seeks to explain observations of nature.

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30

Pico (P)

10 <12

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31

nano (n)

10^-9

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32

Micro (u)

10^-6

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33

Solids

Definite shape and volume

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34

Liquids

Definite volume, no definite shape

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35

gas

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36

Metals

Elements that are good conductors of electric current and heat.

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37

Metalloids

Elements that have properties of both metals and nonmetals.

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38

Transition Metals

groups 3-12

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39

John Dalton

developed modern atomic theory

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40

Aristotle

elemental theory

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41

Alchemist

one who practices medieval chemistry or tries to change metals into gold

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42

Matter is

anything that has mass and takes up space

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43

Property

a characteristic that can be observed or measured

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44

Elements

Any substance that cannot be broken down into simpler substances

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45

mass number

the sum of the number of neutrons and protons in an atomic nucleus

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46

Nuclide Symbol

(A) (z)

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47

group 16

chalcogens

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48

innertranstion metals

lanthinides and anthenides

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49

Isotopes are

atoms of the same element with different mass numbers

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50

Copper (II)

Cu

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51

Flurine

F

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52

gold

Au

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53

Hellium

He

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54

Magnesium

Mg

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55

Maganese

Mn

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56

Mercury

Hg

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57

neon

Ne

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58

Nickle

Ni

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59

Oxigen

O

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60

nitrogen

N

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61

phosphorus

P

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62

Sodium

Na

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63

tin

Sn

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64

zinc

Zn

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65

Hydrogen

H

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66

iodine

I

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67

lead

Pb

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68

iron

Fe

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69

volume

the amount of space an object takes up

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70

speed

Distance/time

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71

Density

mass/volume

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72

aluminum

Al

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73

Barium

Ba

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74

bromine

Br

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75

Calcium

Ca

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76

carbon

C

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77

Chromium

Cr

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78

cobalt

Co

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79

Thompson

Discovered electrons

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80

Earnest Rutherford

The Father of Nuclear Science protons neuclous

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81

James Chadwick

Discovered the neutron

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82

law of definite proportions

a given compound always contains exactly the same proportion of elements by mass

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83

Potassium

K

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84

Sillicon

Si

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85

silver

Ag

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86

sulfur

S

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87

HPO4-2

monohydrogen phosphate

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88

H2PO4-

dihydrogen phosphate

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89

SO4-2

sulfate

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90

HSO4-

hydrogen sulfate

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91

SO3-2

sulfite

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92

S-2

sulfide

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93

HSO3-

hydrogen sulfite

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94

CN-

cyanide

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95

Cr2O7 -2

dichromate

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96

OH-

hydroxide

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97

F-

fluoride

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98

NO3-

nitrate

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99

I-

iodide

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100

C2O4-2

oxalate

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