1|Page
CHEM 120 FINAL EXAM LATEST 2024 WITH
ACTUAL QUESTIONS AND CORRECT VERIFIED
ANSWERS/ALREADY GRADED A+ 100%
GUARANTEED TO PASS CONCEPTS
ionic compounds - .....ANSWER ...✔✔ -deals with
charged particles
-oppositely charged particles are attracted to each
other
-look for presence of metals and polyatomic ions
molecular compounds - .....ANSWER ...✔✔ -share
electrons
-nonmetals
-no polyatomic ions unless its an acid
Type I metals - .....ANSWER ...✔✔ -ionic compounds
-group 1A,2A,3A
-one type of charge state
-Name of metal +ion
-if metal+nonmetal:
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name of metal+base name of nonmetal +ide
-if metal+polyatomic ion:
name of metal+name of polyatomic ion
Type II metals - .....ANSWER ...✔✔ -ionic compounds
-charge states vary
-Name of metal+it's charge as a roman numeral+ion
-if metal+nonmetal:
name of metal+its charge as a roman numeral+base
name of nonmetal+ide
-if metal+polyatomic ion:
name of metal+its charge as a roman numeral+name of
polyatomic ion
Molecular compounds: nonmetal+nonmetal -
.....ANSWER ...✔✔ -prefix+name of 1st
nonmetal+prefix+name of second nonmetal
-no mono for first nonmetals
Acids - .....ANSWER ...✔✔ -are molecular compounds
but behave like ionic compounds when put in water
-dissolved in water(aqueous)
-binary or oxy acids
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Binary acids - .....ANSWER ...✔✔ -hydro+base name
of second nonmetal+ic+acid
-hydro means no oxygen present
Oxy acids - .....ANSWER ...✔✔ -contains oxygen as a
part of a polyatomic ion
-ate becomes ic
-ite becomes ous
-ex: HNO₃→nitric acid
ACID EXCEPTIONS - .....ANSWER ...✔✔
H₂SO₄→sulfuric acid
H₂SO₃→sulfurous acid
H₃PO₄→phosphoric acid
H₃PO₃→phosphorous acid
hydrates - .....ANSWER ...✔✔ name of ionic
compound∙prefix+hydrate
Planck's constant - .....ANSWER ...✔✔ h=6.626*
10⁻³⁴joules seconds
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used in formulas for energy, wavelength, and frequency
E=h*frequency(v)
speed of light (3*10⁸ m/sec)(c)=v*wavelength(A)
E=h(c/A)
electromagnetic spectrum - .....ANSWER ...✔✔ -left
side of spectrum:highest energy, highest frequency,
shortest wavelength (blue light)
-right side of spectrum: lowest energy, lowest frequency,
longest wavelength (red light)
Lewis de Broglie equation - .....ANSWER ...✔✔
wavelength=plancks constant/mass*velocity
cation - .....ANSWER ...✔✔ a positively charged ion
anion - .....ANSWER ...✔✔ a negatively charged ion
usually larger than cation because electron repulsion
electron configuration - .....ANSWER ...✔✔
1s,2s,2p,3s,3p,4s,3d,4p,5s,4d,5p,6s,4f,5d,6p,7s,5f,6d,7
p,8s
ex: Ca: 1s²,2s²,2p⁶,3s²,3p⁶,4s²
CHEM 120 FINAL EXAM LATEST 2024 WITH
ACTUAL QUESTIONS AND CORRECT VERIFIED
ANSWERS/ALREADY GRADED A+ 100%
GUARANTEED TO PASS CONCEPTS
ionic compounds - .....ANSWER ...✔✔ -deals with
charged particles
-oppositely charged particles are attracted to each
other
-look for presence of metals and polyatomic ions
molecular compounds - .....ANSWER ...✔✔ -share
electrons
-nonmetals
-no polyatomic ions unless its an acid
Type I metals - .....ANSWER ...✔✔ -ionic compounds
-group 1A,2A,3A
-one type of charge state
-Name of metal +ion
-if metal+nonmetal:
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name of metal+base name of nonmetal +ide
-if metal+polyatomic ion:
name of metal+name of polyatomic ion
Type II metals - .....ANSWER ...✔✔ -ionic compounds
-charge states vary
-Name of metal+it's charge as a roman numeral+ion
-if metal+nonmetal:
name of metal+its charge as a roman numeral+base
name of nonmetal+ide
-if metal+polyatomic ion:
name of metal+its charge as a roman numeral+name of
polyatomic ion
Molecular compounds: nonmetal+nonmetal -
.....ANSWER ...✔✔ -prefix+name of 1st
nonmetal+prefix+name of second nonmetal
-no mono for first nonmetals
Acids - .....ANSWER ...✔✔ -are molecular compounds
but behave like ionic compounds when put in water
-dissolved in water(aqueous)
-binary or oxy acids
,3|Page
Binary acids - .....ANSWER ...✔✔ -hydro+base name
of second nonmetal+ic+acid
-hydro means no oxygen present
Oxy acids - .....ANSWER ...✔✔ -contains oxygen as a
part of a polyatomic ion
-ate becomes ic
-ite becomes ous
-ex: HNO₃→nitric acid
ACID EXCEPTIONS - .....ANSWER ...✔✔
H₂SO₄→sulfuric acid
H₂SO₃→sulfurous acid
H₃PO₄→phosphoric acid
H₃PO₃→phosphorous acid
hydrates - .....ANSWER ...✔✔ name of ionic
compound∙prefix+hydrate
Planck's constant - .....ANSWER ...✔✔ h=6.626*
10⁻³⁴joules seconds
, 4|Page
used in formulas for energy, wavelength, and frequency
E=h*frequency(v)
speed of light (3*10⁸ m/sec)(c)=v*wavelength(A)
E=h(c/A)
electromagnetic spectrum - .....ANSWER ...✔✔ -left
side of spectrum:highest energy, highest frequency,
shortest wavelength (blue light)
-right side of spectrum: lowest energy, lowest frequency,
longest wavelength (red light)
Lewis de Broglie equation - .....ANSWER ...✔✔
wavelength=plancks constant/mass*velocity
cation - .....ANSWER ...✔✔ a positively charged ion
anion - .....ANSWER ...✔✔ a negatively charged ion
usually larger than cation because electron repulsion
electron configuration - .....ANSWER ...✔✔
1s,2s,2p,3s,3p,4s,3d,4p,5s,4d,5p,6s,4f,5d,6p,7s,5f,6d,7
p,8s
ex: Ca: 1s²,2s²,2p⁶,3s²,3p⁶,4s²
