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Chemistry 121 > Exam 1 > Flashcards

Exam 1 Flashcards

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1
Q

Polyatomic ions

A

Ions that contain more than 1 atom covalently bond

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2
Q

NH4+

A

Ammonium

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3
Q

CN-

A

Cyanide

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4
Q

CLO-

A

Hypochlorite

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5
Q

ClO2-

A

Chlorite

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6
Q

ClO3-

A

Chlorate

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7
Q

ClO4-

A

Perchlorate

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8
Q

Dihydrogen Phosphate

A

H2PO4-

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9
Q

Hydrogen carbonate(bicarbonate)

A

HCO3-

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10
Q

HSO4-

A

Hydrogen sulfate

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11
Q

OH-

A

Hydroxide

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12
Q

Permanganate

A

MnO4-

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13
Q

NO2-

A

Nitrite

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14
Q

Nitrate

A

NO3-

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15
Q

SO3^2-

A

Sulfite

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16
Q

SO4^2-

A

Sulfate

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17
Q

If an ionic compound has more than 1 oxidation state

A

Full name of metal + Roman numeral to designate charge

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18
Q

If an ionic compound has a polyatomic anion present

A

Anion name stays the same

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19
Q

If an ionic compound has a polyatomic anion not present

A

Non metal ends in ide

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20
Q

Covalent acids ending in ide

A

Hydro-anion- ic acid

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21
Q

No ide ions get…

A

-ate or -ite ion

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22
Q

ate=

A

ic acid

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23
Q

ite=

A

-ous acid

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24
Q

Non acids use prefixes ending in

A

ide

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25
Q

Matter

A

Anything that has mass or has the properties of inertia

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26
Q

Made up of more than 1 type of element

A

Compound

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27
Q

_________ are combinations of elements or compounds and are are classified as either _________ with a single phase of matter or heterogeneous with multiple phases

A

Mixtures

Homogeneous

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28
Q

Uniform=

A

Homogeneous

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29
Q

Physical change

A

Just a change in the state of the material

Ex) water changing from liquid to gas

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30
Q

Involves breaking and or making chemical bonds

A

Chemical Change

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31
Q

Intensive physical properties do not vary by the _____ of the sample present

A

Amount

32
Q

Extensive physical properties

A

change with the amount of matter

33
Q

T/F

Chemical properties describe behavior in chemical reaction

A

True

34
Q

Combustibility

A

Ability of something to burn

35
Q

Oxidation Potential

A

Ability of substance to lose electrons

36
Q

Length=

A

Meter

37
Q

Time=

A

Seconds

38
Q

Temperature

A

Kelvin

39
Q

Amount of a substance

A

Mole

40
Q

Mass

A

kg

41
Q

Nano

A

10^-9

42
Q

Micro

A

10^-6

43
Q

Milli

A

10^-3

44
Q

Centi

A

10^-2

45
Q

Deci

A

10^-1

46
Q

Kilo

A

10^3

47
Q

Mega

A

10^6

48
Q

Giga

A

10^9

49
Q

T/F

You will always need more of small unit equal to less of a larger unit

A

True

50
Q

Accuracy

A

How close the measurement is to the true value

51
Q

Precision

A

How close measured values are to one another

52
Q

Systematic error: _________ error associated with an imperfection in an instrument or a procedure

A

Consistent

53
Q

Random error

A

Can be minimized with repeated trials

54
Q

m/v

A

Density

55
Q

Density

A

Represents the amount of matter in a volume

56
Q

The mass of the substances before and after a reaction are the same

A

Law of conservation of mass

57
Q

Law of definite proportions: the ____ ratio of _______ in a compound does not change

A

Mass

Elements

58
Q

Law of multiple proportions

A

Elements can combine in different ratios to make different compounds

59
Q

Atoms are defined by

A

their atomic number/ number of protons

60
Q

Mass number

A

Number of particles in the nucleus

61
Q

Isotopes

A

Atoms of the same element with different number of neutrons

62
Q

Calculating average atomic mass

A

Sum of (mass isotope)(fractional abundance)

63
Q

Masses and abundances of isotopes are determined with

A

Mass spectrometer

64
Q

Groups=

A

columns

65
Q

Rows

A

Periods

66
Q

Cations

A

Positive ions created when a neutral atom loses electrons

67
Q

Anions: _________ ions created when a _______ atom gains electrons

A

Negative

Neutral

68
Q

Mono

A

1

69
Q

Di

A

2

70
Q

Tri

A

3

71
Q

tetra

A

4

72
Q

5

A

Penta

73
Q

hexa

A

6

74
Q

8

A

Octa

75
Q

9

A

Nona

76
Q

Deca

A

10

Chemistry 121 (1 decks)

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