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CHEM 103 FINAL EXAM with correct answers
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CHEM 103 FINAL EXAM with correct answers
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CHEM 103 FINAL EXAM with correctanswers
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 )
grams conversion - correct answers✔✔multiplication
(moles) ( atomic mass )
write balanced equation - correct answers✔✔step 1
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