CHEM 121 FINAL EXAM PORTAGE LEARNING
Questions with Verified Correct Answers
Latest Update 2025 Testbank Bundle
What are the 3 different kinds of hybridization? --- correct answer ---sp: 2 s
--- 1s 1p
sp2: 2s 1 p --- 1s 2p
sp3: 2s 2p --- 1s 3p
What is the purpose of hybridization? --- correct answer ---To stabilize the
atom.
What can carbon bond with as far as hybridization? --- correct answer ---sp,
sp2, sp3
Which equation relates pressure, temperature, volume and number of moles
of gas? --- correct answer ---PV = nRT
P = pressure (atms)
V = volume (Liters)
n = number of moles
,R = constant, 8.314 J K^-1 mol ^-1
T = temperature (ALWAYS IN Kelvin)
What is Boyles Law? --- correct answer ---Relates the pressure of gases to
volume.
What is Charles Law? --- correct answer ---Relates temperature and volume.
What is Avogrados law? --- correct answer ---Relates the number of moles.
What is Avogadros number? --- correct answer ---6.022 x 10 ^ 23
What is formal charge? --- correct answer ---Natural valence subtract (-)
current valence on the lewis structure = Formal Charge
What is standard enthalpy of reaction? --- correct answer ---The amount of
enthalpy of a reaction. H(enthalpy) = E + PV.
What is bond energy? --- correct answer ---The value of energy needed to
break a bond. It is expressed in KJ per mole.
What is dilution? --- correct answer ---Making up of a less concentrated
solution from a master or stock solution.
,What are the different molecular geometries? --- correct answer ---Class
Bond angle
AB2: 2, linear, 180
AB3: 3, trigonal planar, 120,
AB4: 4, tetrahedral, 109,
AB5: 5, trigonal bipyramidal, 120, 90
AB6: 6, octahedral, 90
What are the prefixes for non metal compounds? --- correct answer ---1 =
mono
2 = di
3 = tri
4 = tetr(a)
5 = pent(a)
6 = hex(a)
7 = hept(a)
, How do you name a nonmetal compound? --- correct answer ---Name the
first compound first and second compound second. The second compound
has it's number in the beginning.
How do you name compounds? --- correct answer ---Write the element
farther to the left of the periodic table first. Then class the compound by it's
family. EX. Cl = chloride.
What are some common conversions? --- correct answer ---mega = 10^6
kilo = 10^3
Hecto = 10^2
Deka = 10
deci = 10^-1
centi = 10^-2
Milli = 10^-3
Micro = 10^-6
What is the natural valence? --- correct answer ---The group number will
indicate an element's natural valence.
What does it mean do have open surroundings? --- correct answer ---One
that can exchange energy to the surroundings freely
Questions with Verified Correct Answers
Latest Update 2025 Testbank Bundle
What are the 3 different kinds of hybridization? --- correct answer ---sp: 2 s
--- 1s 1p
sp2: 2s 1 p --- 1s 2p
sp3: 2s 2p --- 1s 3p
What is the purpose of hybridization? --- correct answer ---To stabilize the
atom.
What can carbon bond with as far as hybridization? --- correct answer ---sp,
sp2, sp3
Which equation relates pressure, temperature, volume and number of moles
of gas? --- correct answer ---PV = nRT
P = pressure (atms)
V = volume (Liters)
n = number of moles
,R = constant, 8.314 J K^-1 mol ^-1
T = temperature (ALWAYS IN Kelvin)
What is Boyles Law? --- correct answer ---Relates the pressure of gases to
volume.
What is Charles Law? --- correct answer ---Relates temperature and volume.
What is Avogrados law? --- correct answer ---Relates the number of moles.
What is Avogadros number? --- correct answer ---6.022 x 10 ^ 23
What is formal charge? --- correct answer ---Natural valence subtract (-)
current valence on the lewis structure = Formal Charge
What is standard enthalpy of reaction? --- correct answer ---The amount of
enthalpy of a reaction. H(enthalpy) = E + PV.
What is bond energy? --- correct answer ---The value of energy needed to
break a bond. It is expressed in KJ per mole.
What is dilution? --- correct answer ---Making up of a less concentrated
solution from a master or stock solution.
,What are the different molecular geometries? --- correct answer ---Class
Bond angle
AB2: 2, linear, 180
AB3: 3, trigonal planar, 120,
AB4: 4, tetrahedral, 109,
AB5: 5, trigonal bipyramidal, 120, 90
AB6: 6, octahedral, 90
What are the prefixes for non metal compounds? --- correct answer ---1 =
mono
2 = di
3 = tri
4 = tetr(a)
5 = pent(a)
6 = hex(a)
7 = hept(a)
, How do you name a nonmetal compound? --- correct answer ---Name the
first compound first and second compound second. The second compound
has it's number in the beginning.
How do you name compounds? --- correct answer ---Write the element
farther to the left of the periodic table first. Then class the compound by it's
family. EX. Cl = chloride.
What are some common conversions? --- correct answer ---mega = 10^6
kilo = 10^3
Hecto = 10^2
Deka = 10
deci = 10^-1
centi = 10^-2
Milli = 10^-3
Micro = 10^-6
What is the natural valence? --- correct answer ---The group number will
indicate an element's natural valence.
What does it mean do have open surroundings? --- correct answer ---One
that can exchange energy to the surroundings freely
