CHEM 103 FINAL EXAM 2026/2027 QUESTION
COMPREHENSIVE CHEMISTRY EXAMINATION WITH
VERIFIED ANSWERS
Lewis Structures - CORRECT ANSWERS-represents the transfer or the sharing of electrons in
chemical bonds
octet rule - CORRECT ANSWERS-EVERY ATOM WANTS 8 ELECTRONS IN THEIR OUTERSHELL
ionic bonding - CORRECT ANSWERS-chemical bond formed through the transfer of one or
more electrons from one atom or group of atoms to another group
EX : NaBr
metals - CORRECT ANSWERS-give
nonmetals - CORRECT ANSWERS-take
oxidation number - CORRECT ANSWERS-the superscript indicating the charge on an ion
ion - CORRECT ANSWERS-atom with either positive or negative charge
binary compound - CORRECT ANSWERS-compounds in which 2 elements are present , metal
and non metal - nonmetal changes to ide
ionization energy - CORRECT ANSWERS-energy required to remove the most loosley held
electron from outer shell ; up and to the right
polyatomic molecule - CORRECT ANSWERS-nonmetals that form one ion
,covalent bond - CORRECT ANSWERS-sharing of electrons
EX : CO2
polyatomic ions - CORRECT ANSWERS-Ag silver ion
Fe 2+ ferrous ion
Fe 3+ ferric ion
Cu 1+ cuprous ion
Cu 2+ cupric ion
binary molecule - CORRECT ANSWERS-1st word : prefix and full name
2nd word : prefix and stem and ide
mono - CORRECT ANSWERS-1
di - CORRECT ANSWERS-2
tri - CORRECT ANSWERS-3
tetra - CORRECT ANSWERS-4
penta - CORRECT ANSWERS-5
hexa - CORRECT ANSWERS-6
hepta - CORRECT ANSWERS-7
octa - CORRECT ANSWERS-8
,ennea - CORRECT ANSWERS-9
deca - CORRECT ANSWERS-10
bonding electrons - CORRECT ANSWERS-pairs of valence electrons that are shared between
pairs
non bonding electrons - CORRECT ANSWERS-lone pairs that
are not involved in electron sharing
Linus Pauling - CORRECT ANSWERS-Nobel prize Chemist
electronegativity - CORRECT ANSWERS-measure of atoms attraction for electrons it shares
with another atom in a chemical bond
electronegativity increases - CORRECT ANSWERS-left to right
electronegativity decreases - CORRECT ANSWERS-top to bottom
repulsion - CORRECT ANSWERS-gives molecule shape, describes distance b/w bonding and
non bonding pairs of electrons
molecular geometry - CORRECT ANSWERS-3 dimensional arrangement of atom within a
molecule
VSEPR - CORRECT ANSWERS-valence shell electron pair repulsion theory - set of procedures
for predicting a 3 dimensional geometry molecule
NH4 - CORRECT ANSWERS-ammonium with 1 superscript
, OH 1 - CORRECT ANSWERS-hydroxide
NO2 - CORRECT ANSWERS-nitrite with -1 superscript
NO3 - CORRECT ANSWERS-nitrate with -1 superscript
C2H3O2 - CORRECT ANSWERS-acetate with -1 superscript
HCO3 - CORRECT ANSWERS-bicarbonate with -1 superscript
CO3 - CORRECT ANSWERS-carbonate with -2 superscript
SO3 - CORRECT ANSWERS-sulfite with -2 superscript
SO4 - CORRECT ANSWERS-sulfate with -2 superscript
PO4 - CORRECT ANSWERS-phosphate with -3 superscript
CN 1 - CORRECT ANSWERS-cyanide
molar mass - CORRECT ANSWERS-sum of all atomic masses in a compound
moles conversion - CORRECT ANSWERS-division
( mass )
over
( atomic mass )
COMPREHENSIVE CHEMISTRY EXAMINATION WITH
VERIFIED ANSWERS
Lewis Structures - CORRECT ANSWERS-represents the transfer or the sharing of electrons in
chemical bonds
octet rule - CORRECT ANSWERS-EVERY ATOM WANTS 8 ELECTRONS IN THEIR OUTERSHELL
ionic bonding - CORRECT ANSWERS-chemical bond formed through the transfer of one or
more electrons from one atom or group of atoms to another group
EX : NaBr
metals - CORRECT ANSWERS-give
nonmetals - CORRECT ANSWERS-take
oxidation number - CORRECT ANSWERS-the superscript indicating the charge on an ion
ion - CORRECT ANSWERS-atom with either positive or negative charge
binary compound - CORRECT ANSWERS-compounds in which 2 elements are present , metal
and non metal - nonmetal changes to ide
ionization energy - CORRECT ANSWERS-energy required to remove the most loosley held
electron from outer shell ; up and to the right
polyatomic molecule - CORRECT ANSWERS-nonmetals that form one ion
,covalent bond - CORRECT ANSWERS-sharing of electrons
EX : CO2
polyatomic ions - CORRECT ANSWERS-Ag silver ion
Fe 2+ ferrous ion
Fe 3+ ferric ion
Cu 1+ cuprous ion
Cu 2+ cupric ion
binary molecule - CORRECT ANSWERS-1st word : prefix and full name
2nd word : prefix and stem and ide
mono - CORRECT ANSWERS-1
di - CORRECT ANSWERS-2
tri - CORRECT ANSWERS-3
tetra - CORRECT ANSWERS-4
penta - CORRECT ANSWERS-5
hexa - CORRECT ANSWERS-6
hepta - CORRECT ANSWERS-7
octa - CORRECT ANSWERS-8
,ennea - CORRECT ANSWERS-9
deca - CORRECT ANSWERS-10
bonding electrons - CORRECT ANSWERS-pairs of valence electrons that are shared between
pairs
non bonding electrons - CORRECT ANSWERS-lone pairs that
are not involved in electron sharing
Linus Pauling - CORRECT ANSWERS-Nobel prize Chemist
electronegativity - CORRECT ANSWERS-measure of atoms attraction for electrons it shares
with another atom in a chemical bond
electronegativity increases - CORRECT ANSWERS-left to right
electronegativity decreases - CORRECT ANSWERS-top to bottom
repulsion - CORRECT ANSWERS-gives molecule shape, describes distance b/w bonding and
non bonding pairs of electrons
molecular geometry - CORRECT ANSWERS-3 dimensional arrangement of atom within a
molecule
VSEPR - CORRECT ANSWERS-valence shell electron pair repulsion theory - set of procedures
for predicting a 3 dimensional geometry molecule
NH4 - CORRECT ANSWERS-ammonium with 1 superscript
, OH 1 - CORRECT ANSWERS-hydroxide
NO2 - CORRECT ANSWERS-nitrite with -1 superscript
NO3 - CORRECT ANSWERS-nitrate with -1 superscript
C2H3O2 - CORRECT ANSWERS-acetate with -1 superscript
HCO3 - CORRECT ANSWERS-bicarbonate with -1 superscript
CO3 - CORRECT ANSWERS-carbonate with -2 superscript
SO3 - CORRECT ANSWERS-sulfite with -2 superscript
SO4 - CORRECT ANSWERS-sulfate with -2 superscript
PO4 - CORRECT ANSWERS-phosphate with -3 superscript
CN 1 - CORRECT ANSWERS-cyanide
molar mass - CORRECT ANSWERS-sum of all atomic masses in a compound
moles conversion - CORRECT ANSWERS-division
( mass )
over
( atomic mass )
