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CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials!
[Show more]CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials!
[Show more]CHEM 121 HOMEWORK 3 EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED 
 
what is the symbol of the element that is in Period 4, and group 2 of the periodic table? 
Ca 
Silver, Ag, belongs to what period of the periodic table? 
5 
If the formula for sulfuric acid is H2SO4, what would be the expected f...
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what is the symbol of the element that is in Period 4, and group 2 of the periodic table? 
Ca 
Silver, Ag, belongs to what period of the periodic table? 
5 
If the formula for sulfuric acid is H2SO4, what would be the expected f...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
 
organic chemistry 
the study of organic compounds and their reactions. 
organic compounds 
Organic compounds are compounds that contain one or more carbon and hydrogen atoms. Organic compounds are produced in ...
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organic chemistry 
the study of organic compounds and their reactions. 
organic compounds 
Organic compounds are compounds that contain one or more carbon and hydrogen atoms. Organic compounds are produced in ...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
Process to calculate the partial pressure of a gas in a mixture 
Pgas = Xgas x Ptot 
 
Dalton's Law 
How to calculate mole fraction (Xgas) from mole percentage? 
Xgas = Mole% / 100 
Equation to calculate averag...
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Process to calculate the partial pressure of a gas in a mixture 
Pgas = Xgas x Ptot 
 
Dalton's Law 
How to calculate mole fraction (Xgas) from mole percentage? 
Xgas = Mole% / 100 
Equation to calculate averag...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
Radioactivity 
Becquerel (1896) discovered that photographic plates darkened in contact with uranium ore 
Rutherford discovered two types of particles 
alpha and beta 
alpha, a, particle 
particles: heavy, non-p...
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Radioactivity 
Becquerel (1896) discovered that photographic plates darkened in contact with uranium ore 
Rutherford discovered two types of particles 
alpha and beta 
alpha, a, particle 
particles: heavy, non-p...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
Which of the nuclear emissions is of the greatest mass? 
Select one: 
a. α particles 
b. β particles 
c. neutrons 
d. positrons 
a. α particles 
Tritium has a half-life of 12.5 years. If you had a sample of 8...
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Which of the nuclear emissions is of the greatest mass? 
Select one: 
a. α particles 
b. β particles 
c. neutrons 
d. positrons 
a. α particles 
Tritium has a half-life of 12.5 years. If you had a sample of 8...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
NH4+ 
Ammonium (Polyatomic Ion) 
NO3- 
nitrate ion 
(Polyatomic Ion) 
CN- 
cyanide ion- 
(Polyatomic Ion) 
CIO2- 
Chlorite (Polyatomic Ion) 
BrO3-1 
bromate ion (Polyatomic Ion) 
CIO4- 
Perchlorate (Polyatomic I...
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NH4+ 
Ammonium (Polyatomic Ion) 
NO3- 
nitrate ion 
(Polyatomic Ion) 
CN- 
cyanide ion- 
(Polyatomic Ion) 
CIO2- 
Chlorite (Polyatomic Ion) 
BrO3-1 
bromate ion (Polyatomic Ion) 
CIO4- 
Perchlorate (Polyatomic I...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
Matter 
anything that has mass and occupies space 
Elements 
chemical substance that cannot be broken down into other substances 
Compounds 
made up of two or more different chemical elements 
Mixtures 
combine tw...
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Matter 
anything that has mass and occupies space 
Elements 
chemical substance that cannot be broken down into other substances 
Compounds 
made up of two or more different chemical elements 
Mixtures 
combine tw...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
Arrange these elements according to electronegativity. C, Al, Na, Cs, F 
Arrange these bonds from most ionic to most covalent in character. 
K-F, Ca-F, Cl-F, Br-F, F-F 
Classify these bonds as ionic, polar covalen...
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Arrange these elements according to electronegativity. C, Al, Na, Cs, F 
Arrange these bonds from most ionic to most covalent in character. 
K-F, Ca-F, Cl-F, Br-F, F-F 
Classify these bonds as ionic, polar covalen...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
Giga (G) 
9 
Mega (M) 
6 
Kilo (k) 
3 
Deci (d) 
-1 
Centi (c) 
-2 
Milli (m) 
-3 
Micro (u) 
-6 
Nano (n) 
-9 
Pico (p) 
-12 
Femto (f) 
-15 
Density Equation 
D=M/V 
C 
Carbon 
F 
Fluorine 
H 
Hydrogen 
I 
Iod...
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Giga (G) 
9 
Mega (M) 
6 
Kilo (k) 
3 
Deci (d) 
-1 
Centi (c) 
-2 
Milli (m) 
-3 
Micro (u) 
-6 
Nano (n) 
-9 
Pico (p) 
-12 
Femto (f) 
-15 
Density Equation 
D=M/V 
C 
Carbon 
F 
Fluorine 
H 
Hydrogen 
I 
Iod...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
describe photoelectric effect 
light shining on certain materials cause it to emit electrons 
define a collapse in terms of quantum theory 
collapse of probability 
 
once something happens, there is no more pro...
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describe photoelectric effect 
light shining on certain materials cause it to emit electrons 
define a collapse in terms of quantum theory 
collapse of probability 
 
once something happens, there is no more pro...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
wavelength (λ) 
the distance between two consecutive peaks or troughs in a wave 
frequency (
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wavelength (λ) 
the distance between two consecutive peaks or troughs in a wave 
frequency (
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
Specific Heat equation 
Electronegativity trend 
Bond length 
The less bonds, the longer the bond length. 
Single bonds are the longest. 
Bond Strength 
More bonds, greater strength. 
Formal Charges 
Polar 
A po...
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Specific Heat equation 
Electronegativity trend 
Bond length 
The less bonds, the longer the bond length. 
Single bonds are the longest. 
Bond Strength 
More bonds, greater strength. 
Formal Charges 
Polar 
A po...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
Chemistry. 
The study of composition, structure, properties, a d transformation of matter is a branch of science known as _________ 
matter 
is anything that has mass and occupies space. 
matter 
It is the physi...
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Chemistry. 
The study of composition, structure, properties, a d transformation of matter is a branch of science known as _________ 
matter 
is anything that has mass and occupies space. 
matter 
It is the physi...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
Define wavelength 
distance from crest to crest or trough to trough 
What is the unit symbol of wavelength 
m 
Define frequency 
The number of crests of a wave passing a stationary point of reference per unit of...
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Define wavelength 
distance from crest to crest or trough to trough 
What is the unit symbol of wavelength 
m 
Define frequency 
The number of crests of a wave passing a stationary point of reference per unit of...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
Dalton's Atomic Theory 
1) elements are composed of atoms. 2) atoms of same element are identical, but differ from other elements. 3) elements can mix together 4) atoms only change when mixed with other eleme...
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Dalton's Atomic Theory 
1) elements are composed of atoms. 2) atoms of same element are identical, but differ from other elements. 3) elements can mix together 4) atoms only change when mixed with other eleme...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
thermodynamics 
the study of energy, work, and heat (applied to chemical and physical changes, explain why some chemical reactions do or don't occur) 
thermochemistry 
relationships between chemical reactions a...
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thermodynamics 
the study of energy, work, and heat (applied to chemical and physical changes, explain why some chemical reactions do or don't occur) 
thermochemistry 
relationships between chemical reactions a...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
number of pairs: 2 
linear, 180', sp hybridization, nonpolar 
drawing: linear 
number of pairs: 3 
3 bonded, 0 lone: trigonal planar, 120', sp^2 hybridization, nonpolar 
2 bonded, 1 lone: Bent/V-shaped, 10...
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number of pairs: 2 
linear, 180', sp hybridization, nonpolar 
drawing: linear 
number of pairs: 3 
3 bonded, 0 lone: trigonal planar, 120', sp^2 hybridization, nonpolar 
2 bonded, 1 lone: Bent/V-shaped, 10...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
erlenmeyer flask 
type of flask 
tube brush 
cleaning device 
watch glass 
used to evaporate liquid from crystals trying to form. 
balance 
how to weigh with out the air interfering. 
buret clamp 
holds the bure...
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erlenmeyer flask 
type of flask 
tube brush 
cleaning device 
watch glass 
used to evaporate liquid from crystals trying to form. 
balance 
how to weigh with out the air interfering. 
buret clamp 
holds the bure...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
Define matter, and list its three forms. 
matter is anything that has mass in space. It can be either gas, liquid or solid. 
Define mass 
A measure of the amount of matter in an object 
Define physical property ...
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Define matter, and list its three forms. 
matter is anything that has mass in space. It can be either gas, liquid or solid. 
Define mass 
A measure of the amount of matter in an object 
Define physical property ...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
Resonance structure 
one of the two or more equally valid electron dot structures of a molecule or polyatomic ion. (Not isomer because the atoms stay in the same spot) 
It cannot move the atoms after the initial...
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Resonance structure 
one of the two or more equally valid electron dot structures of a molecule or polyatomic ion. (Not isomer because the atoms stay in the same spot) 
It cannot move the atoms after the initial...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
Ionic bonding 
Refers to electrostatic forces that exist between ions of opposite charge. 
Covalent bonding 
Results from the sharing of electrons between two atoms. 
Metallic bonding 
Each atom is bonded to sever...
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Ionic bonding 
Refers to electrostatic forces that exist between ions of opposite charge. 
Covalent bonding 
Results from the sharing of electrons between two atoms. 
Metallic bonding 
Each atom is bonded to sever...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
Energy 
The ability to do work or transfer heat 
Thermochemistry 
The study of chemical reactions and the energy changes that involve heat 
Chemical energy is mainly... 
potential energy 
1 J = 
1 kg·m2/s2 
1 k...
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Energy 
The ability to do work or transfer heat 
Thermochemistry 
The study of chemical reactions and the energy changes that involve heat 
Chemical energy is mainly... 
potential energy 
1 J = 
1 kg·m2/s2 
1 k...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
Electronegativity 
A measure of the ability of an atom in a chemical compound to attract electrons (chi symbol) 
Pauling Scale of Electronegativity 
O>N>C=H 
salts 
Ionic compounds that can be formed by repl...
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Electronegativity 
A measure of the ability of an atom in a chemical compound to attract electrons (chi symbol) 
Pauling Scale of Electronegativity 
O>N>C=H 
salts 
Ionic compounds that can be formed by repl...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
According to Dalton, atoms are all: 
indivisible 
A 100 g sample comprised of molecule (A) is made up of 57.1 g of oxygen and 42.9 g of carbon. Another 100 g sample comprised of molecule (B) is made up of 72.7 g...
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According to Dalton, atoms are all: 
indivisible 
A 100 g sample comprised of molecule (A) is made up of 57.1 g of oxygen and 42.9 g of carbon. Another 100 g sample comprised of molecule (B) is made up of 72.7 g...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
Homogenous Mixture 
mixture same throughout EX) Air 
Heterogenous Mixture 
Mixture different throughout EX) Smoke 
Density= 
Mass(g)/Volume(l) 
Filtration 
Used to sperate a hetro mixture 
Distillation 
from Hom...
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Homogenous Mixture 
mixture same throughout EX) Air 
Heterogenous Mixture 
Mixture different throughout EX) Smoke 
Density= 
Mass(g)/Volume(l) 
Filtration 
Used to sperate a hetro mixture 
Distillation 
from Hom...
CHEM 121-GLASSWARE FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
use of beaker 
roughly measuring, transporting, mixing, and holding chemcials 
Erlenmeyer flask 
used to hold and swirl liquids 
Volumetric flask 
used to make a standard solution of fixed solutions very...
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use of beaker 
roughly measuring, transporting, mixing, and holding chemcials 
Erlenmeyer flask 
used to hold and swirl liquids 
Volumetric flask 
used to make a standard solution of fixed solutions very...
CHEM 121 THERMODYNAMICS FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
Thermochemistry 
the study of chemical reactions and the correlated changes in energy 
Energy 
the capacity to do work or supply heat 
mechanical energy 
energy due to motion or position. The sum...
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Thermochemistry 
the study of chemical reactions and the correlated changes in energy 
Energy 
the capacity to do work or supply heat 
mechanical energy 
energy due to motion or position. The sum...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
ionic bonds 
the electrostatic forces that hold ions together in ionic compounds 
 
groups 1 and 2 in a compound mean ionicc 
cant have an expanded octet 
hydrogen, helium, li 
thium to neon 
can have expanded octet...
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ionic bonds 
the electrostatic forces that hold ions together in ionic compounds 
 
groups 1 and 2 in a compound mean ionicc 
cant have an expanded octet 
hydrogen, helium, li 
thium to neon 
can have expanded octet...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
In which set of elements would all members be expected to have very similar chemical properties? 
D) O, S, Se 
Which of the following is an isoelectronic series? 
E) O2-, F-, Ne, Na+ 
Which isoelectronic series ...
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In which set of elements would all members be expected to have very similar chemical properties? 
D) O, S, Se 
Which of the following is an isoelectronic series? 
E) O2-, F-, Ne, Na+ 
Which isoelectronic series ...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
Hydrochloric acid 
HCl, no charge, Strong acid 
Hydrobromic Acid 
HBr, no charge, strong acid 
Hydroiodic acid 
HI, no charge, strong acid 
Nitric acid 
HNO3, no charge, strong acid 
Sulfuric acid 
H2SO4, no cha...
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Hydrochloric acid 
HCl, no charge, Strong acid 
Hydrobromic Acid 
HBr, no charge, strong acid 
Hydroiodic acid 
HI, no charge, strong acid 
Nitric acid 
HNO3, no charge, strong acid 
Sulfuric acid 
H2SO4, no cha...
CHEM 121 FINAL EXAM | UPDATED QUESTIONS AND ANSWERS UPDATED .Buy Quality Materials! 
 
 
Covalent bond 
nonmetal and nonmetal 
Ionic bond 
metal and nonmetal 
Sharing of electrons, mainly on the right side of the table 
covalent bond 
losing and gaining electrons, whole table 
ionic bond 
bonding 
h...
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Covalent bond 
nonmetal and nonmetal 
Ionic bond 
metal and nonmetal 
Sharing of electrons, mainly on the right side of the table 
covalent bond 
losing and gaining electrons, whole table 
ionic bond 
bonding 
h...
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