good electrical and heat conductor

generalization that explains a body of known facts/phenomena

relative numbers of moles of reactants and products

mass of reactants = mass of products

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Bryant_Chemistry Fall Semester Exam 2015

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1
69
radiation must be emitted
energy must be released
energy must be absorbed
the electron must move from a higher to lower energy level
2
55
conductivity
ductility
malleability
luster
3
6
10:6
2:3
4:3
3:4
4
29
108 g
2.00 g
54.0 g
6.00 g
5
79
chemistry of living things
carbon containing compounds
crystals and minerals
properties changes and relationships between energy/matter
6
83
CH3
C3H9
CH4
C2H6
7
65
b
d
c
a
8
71
polar covalent
nonpolar covalent
metallic
ionic
9
42
20
18
3
8
10
16
longer
shorter
equal
exactly half the length of B's wavelength
11
21
Mendeleev
Bohr
Moseley
Ramsay
12
34
the same mass
the same ratio of elements
slightly different molecular structures
the same melting point
13
74 (I could not put electrons on top and bottom so I put them all on one side)
:H - Cl:
:H - Cl:::
Cl - H:
H - Cl:::
14
73
20% C 80% F
16.8% C 83.2 %F
81%C 19%F
13.6% C 86.4% F
15
80
3
1
4
6
16
72
1440
100800
168
10080
17
46
masses
number of electrons
principle chemical properties
number of protons
18
39
orbital
orbit
electron path
spectral line
19
61
NaSO4 and H2O
S and O2 and Na
SI4 and Na2O
Na2SO4 and H2O
20
77
MgCO3
MgCO2 + O
MgC + O3
Mg + CO3
21
75
nucleus
neutron
proton
electron
22
14
igniting
rusting
burning
melting
23
11
homogeneous
solution
chemically bonded
heterogeneous
24
37
HCl
HClO
HF
H2CO3
25
25
very brittle
easy to break down into its components
very hard
good electrical and heat conductor
26
92
combustion
double displacement
synthesis
decomposition
27
30
1.81 mol
3.61 mol
11.0 mol
0.904 mol
28
99
carbon tetrafluoride
carbon fluoride
monocarbon tetrafluoride
calcium fluoride
29
100
bent
trigonal pyramidal
trigonal planar
tetrahedral
30
2
aluminum sulfide
aluminum (II) sulfate
aluminum sulfate
aluminum sulfur
31
70
series of experimental observations
generalization that explains a body of known facts/phenomena
testable statement
scientifically proven fact
32
26
Zn2F
ZnF2
Zn2F3
ZnF
33
13
d
c
a
b
34
10
+6
0
+4
-2
35
85
d
b
a
c
36
27
a metal and a compound of chlorine and oxygen
metallic oxides and chlorine
a metal, chlorine, and oxygen
metallic chlorides and oxygen
37
82
number of atoms in each compound in a reaction
relative numbers of moles of reactants and products
masses, in grams, of all reactants and products
number of valence electrons involved in the reactions
38
9
250 kg
.025 mg
.025 kg
250 mg
39
89
helium
neon
krypton
argon
40
84
s-1, p-2, d-3, f-4
s-2, p-6, d-10, f-14
s-1, p-3, d-5, f-7
s-2, p-4, d-6, f-8
41
43
all matter is composed of atoms
atoms of different elements have different properties/masses
atoms cannot be divided
atoms can combine in chemical reactions
42
in an equation, the symbol for a substance in water solution is followed by
(aq)
(s)
(g)
(l)
43
38
synthesis
combustion
decomposition
single displacement
44
60
energy as heat must be added to the reactants
mass of products > mass of reactants
number of atoms in reactants and products must change
mass of reactants = mass of products
45
45
unevenly distributed
closely packed
held in fixed positions
very far from one another
46
94
lanthanides
unreactive
rare
excellent conductors
47
19
groups
rows
periods
elements
48
68
451 g
111 g
188 g
98.7 g
49
98
iron (III) nitrate
iron (II) nitrite
iron (III) nitride
iron (II) nitrate
50
49
dipole
lewis structure
London dispersion force
chemical bond
51
15
atomic radius
atomic volume
electron cloud
atomic diameter
52
24
definite; definite
indefinite; indefinite
indefinite; definite
definite; indefinite
53
18
ionic
dipolar
nonpolar
polar
54
5
a
c
d
b
55
7
1,2,2
1,1,2
2,2,2
2,1,1
56
Which observation does not indicate that a chemical reaction has occurred
evolution of heat and light
change in total mass of substances
production of gas
formation of precipitate
57
32
SiO2
Si2O
Si2O3
SiO
58
67
3
5
1
8
59
35
1
8
9
10
60
20
mass number of the least abundant isotope
relative average
relative mass of the most abundant radioactive isotope
relative mass of most abundant isotope
61
59
multiple proportions
mass action
conservation of mass
definite composition
62
95
4.5 g
80. g
200 g
45 g
63
88
period 1
group 4
period 4
group 1
64
56
neither
precise but not accurate
accurate but not precise
both
65
66
gases
metalloids
nonmetals
metals
66
8
65 x 10-6
6.5x10-6
6.5x10-5
6.5x10-4
67
36
the numbers of protons and neutrons are equalt
nuclear forces stabilize the charges
the numbers of protons and electrons are equal
neutrons balance the protons and electrons
68
81
18 p, 18 e, 17 n
35 p, 35 e, 17 n
17 p, 17 e, 52 n
17 p, 17 e, 18 n
69
1
composition reaction
single displacement
double displacement
decomposition reaction
70
51
are too unpredictable
are no longer present
are usually much weaker than the dipole-dipole forces
act only in solids
71
17
c
b
d
a
72
44.
0.556 g
4.20 g
4.05 g
1.80 g
73
76
atoms are mostly empty space
electrons formed the nucleus
atoms were indivisible
atoms contain no charged particles
74
58
pure substance that can be broken down
smallest unit of matter
pure substance that cannot be broken down
any substance
75
63
Pauli exclusion principle
Hunds rule
Aufbau principle
Bohrs law
76
64
c
b
d
a
77
48
Moseley
Cannizzaro
Rutherford
Mendeleev
78
52
the pauli exclusion principle
Hunds rule
the Aufbau principle
the quantum rule
79
90
lanthanides
alkaline earth metals
noble gases
actinitdes
80
57
photoelectric effect
quantum effect
dual effect
interference effect
81
4
c
b
d
a
82
97
alkali metals
alkaline earth metals
transition metals
metalloids
83
3
properties are function of their atomic number
chemical not physical properties grouped by periodicity
electrons act as particles and waves
no two electrons have same spin
84
33
46.08 amu
33.27 amu
45.06 amu
30.33 amu
85
50
covalent bonds
highly mobile valence electrons
positive ions
brittle crystalline structure
86
78
59.3 g
72.6 g
11 g
3.01 g
87
91
oxygen
fluorine
chlorine
sodium
88
28
electrons
dumbbells
spheres
circles
89
22
a
b
c
d
90
54
single displacement
synthesis
decomposition reaction
double displacement
91
96
d
c
b
a
92
40
c
b
a
d
93
23
velocity
wavelength
quantum number
frequency
94
47
b
c
d
a
95
62
91.0
73.4
82.1
98.9
96
87
b
c
a
d
97
93
reaction slows down
reaction stops
reaction speeds up
excess reactants begin combining
98
86
mass
density
weight
inertia
99
12
20
4
10
2
100
31
Pb2CrO4
Pb(CrO4)2
Pb2(CrO4)3`
PbCrO4

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