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CHEMISTRY FINAL REVIEW Flashcards | StudBud
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CHEMISTRY FINAL REVIEW
CHEMISTRY FINAL REVIEW
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Let’s pass finals shall we
Flashcards
122 cards
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Questions
122
Answers
1
Unlike compounds that are bonded together, mixtures are
Blended together
Mixed together
Precise
Reacted
2
Taco is an example of
Compound
Heterogeneous mixture
Element
Homogeneous mixture
3
Atomic orbitals can hold two electrons at most, and they must have opposite spins know as the
Pauli Principle
Aufbau Principle
Hund’s Rule
Electron configuration
4
In an atom, when the atomic number equals the number of electrons, the atom is said to be
An anion
Neutral
Positive
Negative
5
Chemical changes are known as
Physical properties
Pure substances
Chemical properties
Homogeneous mixtures
6
What is ‘ Ne ‘
Neodymium
Neon
Carbon
Sodium
7
Boiling water / melting butter / and mixing sand and water is an example of
Physical change
Chemical change
8
Electrons are arranged in ___ around the nucleus
Atomic mass units
Energy levels
Electrons
Metals
9
Burning popcorn / digesting food / and rust forming on a car is an example of
A chemical change
A physical change
None of the above
A physical property
10
Atomic mass is an average of the elements
Isotopes
Neutrons
Ions
Atomic weight
11
The nucleus of an atom is
None of these
Negatively charged and has a low density
Positively charged and has a low density
Positively charged and has a high density
12
A ___property of water is that it is unreactive with oil
Chemical
Physical
13
What is NOT an example of a chemical change
None of the above
Tossed Salad
Digesting Taco Bell
Rusting iron
14
The first scientist who thought about atoms
Democritus
Rutherford
Goldstein
Thompson
15
Like charges ___ each other
Attract
Like
Bond with
Repel
16
Atoms that have the same number of electrons are ____ with each other
Alike
Isomagnetic
Equal
Isoelectronic
17
Pizza is an example of
Heterogeneous mixture
Homogeneous mixture
Compound
Element
18
Carbon dioxide is an example of
Homogeneous mixture
Heterogeneous mixture
Compound
Element
19
The name of the experiment used to discover the nucleus
Nucleaic Foundation Experiment
Cathode ray tube experiment
Gold foil
None of the above
20
580.0 is
5.8x 10^4
5.8 x 10^2
58x 10^-2
.58 x 10^2
21
What is the long form electron configuration of F (8)
1s3, 2p5
1s2, 2s2, 2p5
2s2, 2p3,2d3
1s4 , 2p4
22
Tossed salad is an example of
Heterogeneous mixture
Compound
Element
Homogeneous mixture
23
Zinc is an example of
Heterogeneous mixture
Element
Homogeneous mixture
Compound
24
___ is the study of matter and the changes it undergoes
Science
Chemistry
Physics
25
Who used the deflection angles of alpha particles to describe the nucleus of an atom
Democritus
Goldstein
Thompson
Rutherford
26
Trix cereal is an example of
Element
Homogeneous mixture
Heterogeneous mixture
Compound
27
Copper ( II ) chloride is an example of
Heterogeneous mixture
Homogeneous mixture
Compound
Element
28
Dissolving salt is an example of
Chemical change
Physical change
29
Alcohols are flammable
Physical property
Chemical property
30
Protons, neutrons, and electrons are called this
Cations
Metals
Anions
Subatomic particles
31
What is the 3- dimensional orientation of a sublevel known as
Sublevel
Nuclear orbits
Electron
Atomic orbital
32
The n= ____shell is the lowest in energy that may contain p orbitals
5
2
3
4
33
The scientist who discovered the neutron
Chadwick
Rutherford
Goldstein
Thompson
34
describes an occurrence that has been tested under different conditions over a long period time
Law
Precision
Accuracy
Hypothesis
35
Attracted to the South Pole of a magnet
Physical property
Chemical property
36
What can be easily compressed, has an indefinite shape, and an indefinite volume
Gas
Solid
Liquid
37
The group of elements that tend to gain electrons
Metals
Isotopes
Non metals
Neutrons
38
What is the element symbol for Boron?
Bo
Bn
Br
B
39
Who discovered the proton
Thompson
Rutherford
Democritus
Goldstein
40
What is the maximum number of electrons that can be described by n=2
10
6
8
2
41
A density of 3g/mL
Physical property
Chemical property
42
The measurement of 13.5*C from a thermometer is a ____ observation
Accurate
Qualitive
Quantitive
Exact
43
Calcium loses 2 electrons. What element is it isoelectronic with
Ar
Kr
Ti
Ne
44
How close measurements are to the accepted value is known as
Exact numbers
Accuracy
Precision
Law
45
How many valence electrons are in Co: 1s2, 2s2, 2p6 ,3s2, 3p6, 4s2, 3d7
4ve
7 ve
3ve
2ve
46
The name of the type of ion when electrons are lost
Nonmetals
Cation
Anion
Neutrons
47
How many protons are in Pb-206? Pb- 207? Pb-204
84
204
78
82
48
How many significant figures are in : 3404 pens
3
None of the above
4
Infinite
49
How many sig figs are in 580.0
5
3
2
4
50
Salt water is an example of
Element
Compound
Homogeneous mixture
Heterogeneous mixture
51
Saying “ The outside beaker is very hot” is a ___ observation
Quantitive
Boring
Exact
Qualitive
52
Electrons located in the outermost energy level are called
Aufbau electrons
Valence electrons
Variance electrons
Outermost electrons
53
In the gas state , a substance will have a(n) ____ volume
Definite
Indefinite
54
Which of the following is NOT part of Daltons atomic theory
All atoms are composed of atoms
None of these
Atoms of the same element are alike
Atoms are always in motion
55
___ have an infinite number of significant figures
States
Exact numbers
Qualitive
Decimals
56
Elements and compounds are classified as this
Pure substances
Chemical properties
Chemistry
Mass
57
Elements lose or gain electrons to become like this
Isoelectronic
Gas
Noble gases
Positive
58
Which of these statements is not true
Atoms of the same element can have different masses
Atoms of isotopes of an element have different # of protons
The nucleus of an atom has a positive charge
Atoms are mostly space
59
Cations are formed by electrons being
Formed
Bonded
Lost
Repeled
60
An exact number has an ___ amount of significant figures
Infinite
Estimated
Definite
Accurate
61
Anything that has mass and volume
Mixture
Substance
Pure substances
Matter
62
How many electrons can be described by the following quantum numbers ; n=2, l=3, ml=2, ms=1/2
2
3
0
1
63
Which of the following sets of quantum numbers is possible
2, 1 , -1, -1/2
1,0,0,0
1, 1, +1, +1/2
3, 0, -1, +1/2
64
Anything that has mass or volume is called ___
A gas
a Solid
Density
Matter
65
Which one of these statements are FALSE
The neutron is found in the nucleus of an atom
The nucleus of an atom is positively charged
Electrons have a mass of 1 amu
Electrons have a negative charge
66
Anions are formed by electrons being ___
Bonded
Lost
Formed
Gained
67
The p sublevel represents the ____ shape
Clover
Sphere
Dumbbell
Double clover
68
What is the element symbol for calcium
Cm
Ca
C
Cl
69
Plain jello is an example of
Homogeneous mixture
Heterogeneous mixture
Element
Compound
70
Isotopes have the same number of protons but have different number of
Electrons
Isotopes
Neutrons
Ions
71
A penny is an example of
Element
Homogeneous mixture
Compound
Heterogeneous mixture
72
Melting ice / molding clay / and dissolving salt are examples of
A physical change
A chemical change
None of the above
A chemical reaction
73
Who saw that particles in gas were attracted to the positive plate of the cathode ray
Thompson
Rutherford
Democritus
Goldstein
74
In the ___ state, substances have definite volume and an indefinite shape
Liquid
Solid
Gas
Freezing
75
How many sig figs are in 0.0056020
4
3
5
8
76
What is ‘ Sc ‘
Scandium
Tin
Strontium
Selenium
77
An atom of an element with atomic number 48 and mass # of 120 contains
72 protons, 48 electrons , and 48 neutrons
48 protons, 48 electrons , and 72 neutrons
72 protons, 72 electrons, and 48 neutrons
120 protons, 48 electrons, and 72 neutrons
78
What is the element symbol for sodium?
Sd
So
Ne
Na
79
The s sublevel resembles this type of motion (shape)
Double clover
Sphere
Dumbell
Clover
80
___ measurements are descriptive and non-numeric
Exact
Precision
Quantitive
Qualitive
81
How close multiple measurements are to each other is called ___
Exact
Accuracy
Definite
Precision
82
The atom or group of atoms with a positive or negative charge
Ion
Isotopes
Anions
Metals
83
The group of elements that tend to lose electrons
Isotopes
Non metals
Ions
Metals
84
What is the most tight packed form of matter
Gas
Solid
Liquid
85
What is the measurement ; with the appropriate amount of significant figures
8.25cm
8.3cm
8.25
8.2cm
86
In a compound the elements are ___ together
Definite
Blended
Mixed
Bonded
87
___ is an example of a physical change
Gas
Freezing
Bonding
Burning
88
Decomposes in CO2
Chemical property
Physical property
89
Protons + neutrons
Electrons
Mass number
Nucleus
Atomic mass
90
What are Properties that can be observed without changing composition of the sample matter ?
Chemical reactions
Pure substances
Physical properties
Chemical properties
91
The mass of a single Atom is measured in ___
Isotopes
Centimeters
Atomic mass units
Ions
92
How many significant figures are in : 0.0030 mm
4
None of the above
2
5
93
What are 3 examples of measurements that are precise
4.00 L, 4.00 L, 4.00 L
5.00, 5.00 , 5.00
5.00mL, 5.00 mL , 5.00mL
4.57 mL, 4.58 mL, 4.45mL
94
When measuring off any instrument, you must measure all certain digits off the instrument plus
The exact measurement
The sig fig
One extra estimated digit
The Coefficients
95
Boils at 100 degrees Celsius
Physical property
Chemical property
96
Which of the following orbitals might have ml=2
D and f
P and d
S
S and p
97
Who said that an atom is mostly empty space
Rutherford
Democritus
Thompson
Goldstein
98
The number 80 in the name bromine represents
None of these
The sum of protons and electrons
The atomic mass number
The atomic number
99
A gas has a volume of 22.4 L
Physical property
Chemical property
100
The components of this mixture can be easily seen with the naked eye and are distinguishable
Pure substances
Chemical reactions
Homogeneous
Heterogeneous
101
Water is an example of
Compound
Heterogeneous mixture
Element
Homogeneous mixture
102
Scientific notation includes two parts, the ____ and the power of 10
Coefficient
Estimated digit
Precision
Significant figure
103
What is energy
Anything that can do work or produce heat
Fast motion
Ball that moves rapidly
104
The n=2 energy level contains these sublevels
S,p,d,f
Dumbbell
S,p
S,p,d
105
Oil and water is an example of
Homogeneous mixture
Heterogeneous mixture
Element
Compound
106
Electrons closest to the nucleus of an atom are ____ energy
Lowest
Highest
107
Solid , liquid , and gas are three ___ of matter
Stages
Doings
States
Laws
108
How many sig figs are in 0.2031
3
5
1
4
109
What is the measure /// with the appropriate amounts of significant figures
75mL
73.0
73mL
73.0mL
110
What is the element symbol for fluorine ?
Fe
F
Fl
Fr
111
How many significant figures are in : 705,400
3
4
6
0
112
A ___ is the average distance of the electron to the nucleus of an atom
Electron configuration
Principle Energy Level
Hund’s rule
Sublevel
113
How many orbitals have the following set of quantum numbers : n=6, l=3, ml=2
6
1
0
3
114
A f sublevel can hold a maximum of ____ electrons , with only ___ electrons in each orbital
6, 2
10, 2
14, 2
2, 6
115
A method that indicates the arrangement of electrons in a particular element
Electron configuration
Principle energy level
Hund’s rule
Sublevel
116
A ___ serves as a possible explanation to a problem
Thought
Hypothesis
Thesis
Law
117
The n = 4 energy level contains these sublevels
S, p, d, f
S, p , d
Dumbell
S, p
118
The force of gravity pushing down on an object accounts for the objects
Mass
Measurements
Weight
Height
119
What are 3 examples of measurements that are accurate
5.00mL , 5.00 mL , 5.00mL
5.03mL, 4.57mL, 5.03mL
5.00 mL , 5.02mL , 5.03mL
5.67 mL , 5,58 mL, 5.65 mL
120
Potassium is an example of
Element
Compound
Homogeneous mixture
Heterogeneous mixture
121
What is the element symbol for vanadium ?
Va
Vd
V
Vm
122
The person who gave the atom its name
Goldstein
Democritus
Rutherford
Thompson
