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chm 131 > Exam 1 > Flashcards

Exam 1 Flashcards

1
Q

What do columns of the periodic table have in common?

A

Relative Reactivities

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2
Q

What do rows of the periodic table have in common

A

Electron Configurations

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3
Q

Groups 3-12 are also known as what?

A

Transition Metals

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4
Q

What is group 17 called?

A

Halogens

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5
Q

Give an example of an intensive property

A

Temperature

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6
Q

Give an example of an extensive property?

A

Length

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7
Q

Non metals are on what side of the zig-zag line on the periodic table?

A

Right side

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8
Q

Where are semi metals found?

A

Along the zig-zag line

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9
Q

what prefix represents 10^3

A

Kilo

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10
Q

what prefix represents 10^6

A

Mega

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11
Q

what prefix represents 10^-2

A

centi

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12
Q

How do you convert from Celsius to Fahrenheit

A

9/5*C+32

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13
Q

How do you convert from Fahrenheit to Celsius

A

5/9*F-32

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14
Q

1m^3 equals how many cm^3

A

1000

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15
Q

What is the equation for density?

A

Mass/Volume

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16
Q

Define Accuracy

A

How close you are to the true value

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17
Q

Define Precision

A

How close your measurements are to eachother

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18
Q

How many sig figs does 100% have?

A

Infinite

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19
Q

How many sig figs in .02305

A

4

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20
Q

Define the law of conservation of mass

A

Mass is neither created nor destroyed in chemical reactions

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21
Q

Define the Law of Definite Properties

A

chemical substance of the same type always combine in the same proportions of elements. I.E. H20 is always H2O

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22
Q

Define the Law of Multiple Proportions

A

Elements can combine in different ways to form different elements.

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23
Q

What is a compound?

A

Elements combined together

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24
Q

What tool was used in the discovery of electrons?

A

Cathode Ray

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25
Q

Milliken’s Experiment discovered what?

A

The mass and the charge of electrons

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26
Q

What did Rutherford locate in his experiment?

A

The Nucleus

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27
Q

Where is most of the atom’s mass located?

A

The Nucleus

28
Q

Define Isotope?

A

Atoms with identical atomic numbers but different masses

29
Q

What is an allotrope?

A

The different ways an element can form

30
Q

What is the atomic mass?

A

a weighted average of all the known masses of an element

31
Q

What is avogadro’s number?

A

6.022X10^23

32
Q

What is different between and Nuclear reaction and chemical reaction?

A

Nuclear reaction changes an atom into a new element

33
Q

What does a alpha radiation release?

A

A helium atom

34
Q

What does a beta radiation release?

A

An electron

35
Q

What does gamma radiaton release?

A

A high energy photon

36
Q

Stable isotopes have what proton to nuetron ratio?

A

1:1

37
Q

name the four states of matter

A

Solid, Liquid, Gas, Plasma

38
Q

What is a homogeneous mixture?

A

A mixture you can’t seperate

39
Q

What is a heterogeneous mixture?

A

A mixture you can seperate

40
Q

Name two types of pure substances

A

Elements Chemical Compounds

41
Q

What elements combine using covalent bonds

A

Non Metals

42
Q

What is a covalent bond?

A

two atoms share several electrons

43
Q

What is an ionic bond?

A

no electrons are shared, ions are electrostatically attracted.

44
Q

What to elements combine using ionic bonds?

A

Metal and Non metals

45
Q

Define a molecule

A

unit of matter when two or more atoms are covalently bonded.

46
Q

What is an ion?

A

a charged particle

47
Q

What is a cation?

A

a positively charged particle

48
Q

What is the name for NaCL

A

Sodium Chloride

49
Q

what is the equation for aluminum oxide

A

Al2O3

50
Q

How to you label transition metal ionic compounds

A

Metal- has roman numeral for charge Non metal- ends in Ide

51
Q

What is the name for CrCl3

A

Chromium(3) Chloride

52
Q

what is the name for P2O5

A

diphosphorous pentoxide

53
Q

How do you label covalent compounds?

A

both atoms get prefixes, and certain compounds get subfixes

54
Q

What is the name of SO4

A

Sulfate

55
Q

What is the equation for chromate?

A

CrO4

56
Q

What is the name of MnO4

A

Permanganate

57
Q

what is the prefix for 10^2

A

hecto

58
Q

what is the prefix for 10^-3

A

milli

59
Q

what is the name for NH4

A

Ammonium

60
Q

NO2

A

Nitrate

61
Q

HSO4

A

Hydrogen Sulfate

62
Q

OH

A

Hydroxide

63
Q

NO3

A

Nitrate

64
Q

H2PO4

A

Dihydrogen phosphate

65
Q

HCO3

A

Hydrogen Carbonate

chm 131 (4 decks)

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