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