Chem 103
CHEM 103 FINAL EXAM QUESTIONS
WITH ANSWERS 2026 GRADED A+
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
Chem 103
,Chem 103
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
Chem 103
, Chem 103
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
molar mass -Correct Answer ✔-sum of all atomic masses in a compound
moles conversion -Correct Answer ✔-division
( mass )
over
( atomic mass )
grams conversion -Correct Answer ✔-multiplication
(moles) ( atomic mass )
write balanced equation -Correct Answer ✔-step 1
write given -Correct Answer ✔-step 2
write unknown -Correct Answer ✔-step 3
find moles of given -Correct Answer ✔-step 4
Chem 103
CHEM 103 FINAL EXAM QUESTIONS
WITH ANSWERS 2026 GRADED A+
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
Chem 103
,Chem 103
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
Chem 103
, Chem 103
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
molar mass -Correct Answer ✔-sum of all atomic masses in a compound
moles conversion -Correct Answer ✔-division
( mass )
over
( atomic mass )
grams conversion -Correct Answer ✔-multiplication
(moles) ( atomic mass )
write balanced equation -Correct Answer ✔-step 1
write given -Correct Answer ✔-step 2
write unknown -Correct Answer ✔-step 3
find moles of given -Correct Answer ✔-step 4
Chem 103
