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Chem 103 Final Exam Portage Learning
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Chem 103 Final Exam Portage Learning
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Chem 103 Final Exam Portage LearningLewis Structures - ANSWER represents the transfer or the sharing of electrons in
chemical bonds
octet rule - ANSWER EVERY ATOM WANTS 8 ELECTRONS IN THEIR
OUTERSHELL
ionic bonding - 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 - ANSWER give
nonmetals - ANSWER take
oxidation number - ANSWER the superscript indicating the charge on an ion
ion - ANSWER atom with either positive or negative charge
binary compound - ANSWER compounds in which 2 elements are present , metal
and non metal - nonmetal changes to ide
ionization energy - ANSWER energy required to remove the most loosley held
electron from outer shell ; up and to the right
polyatomic molecule - ANSWER nonmetals that form one ion
covalent bond - ANSWER sharing of electrons
EX : CO2
polyatomic ions - ANSWER Ag silver ion
Fe 2+ ferrous ion
Fe 3+ ferric ion
Cu 1+ cuprous ion
Cu 2+ cupric ion
binary molecule - ANSWER 1st word : prefix and full name
2nd word : prefix and stem and ide
mono - ANSWER 1
di - ANSWER 2
tri - ANSWER 3
,tetra - ANSWER 4
penta - ANSWER 5
hexa - ANSWER 6
hepta - ANSWER 7
octa - ANSWER 8
ennea - ANSWER 9
deca - ANSWER 10
bonding electrons - ANSWER pairs of valence electrons that are shared between
pairs
non bonding electrons - ANSWER lone pairs that
are not involved in electron sharing
Linus Pauling - ANSWER Nobel prize Chemist
electronegativity - ANSWER measure of atoms attraction for electrons it shares with
another atom in a chemical bond
electronegativity increases - ANSWER left to right
electronegativity decreases - ANSWER top to bottom
repulsion - ANSWER gives molecule shape, describes distance b/w bonding and
non bonding pairs of electrons
molecular geometry - ANSWER 3 dimensional arrangement of atom within a
molecule
VSEPR - ANSWER valence shell electron pair repulsion theory - set of procedures
for predicting a 3 dimensional geometry molecule
NH4 - ANSWER ammonium with 1 superscript
OH 1 - ANSWER hydroxide
NO2 - ANSWER nitrite with -1 superscript
NO3 - ANSWER nitrate with -1 superscript
C2H3O2 - ANSWER acetate with -1 superscript
HCO3 - ANSWER bicarbonate with -1 superscript
, CO3 - ANSWER carbonate with -2 superscript
SO3 - ANSWER sulfite with -2 superscript
SO4 - ANSWER sulfate with -2 superscript
PO4 - ANSWER phosphate with -3 superscript
CN 1 - ANSWER cyanide
molar mass - ANSWER sum of all atomic masses in a compound
moles conversion - ANSWER division
( mass )
over
( atomic mass )
grams conversion - ANSWER multiplication
(moles) ( atomic mass )
write balanced equation - ANSWER step 1
write given - ANSWER step 2
write unknown - ANSWER step 3
find moles of given - ANSWER step 4
determine mole ratio - ANSWER step 5
convert moles to grams - ANSWER step 6
limiting reagent - ANSWER reagent that is used up first , calculate moles of each
reagent , least amount is limiting
stoichiometry - ANSWER mass-mass relationship quantile study of chemical reaction
bond polarity - ANSWER measure of the degree of in equality in sharing of electrons
between 2 atoms in a chemical bond
non polar bond - ANSWER symmetrical distribution of electron charge
H2 N2
polar bond - ANSWER a bond in which there is an unsymmetrical distribution of
electron charge
HCl and CO
compressibility - ANSWER measure of change in a volume due to a change in
pressure
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