CHEM134 FINAL QUESTIONS AND
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT
(GUARANTEED SUCCESS)
Question: What is an instantaneous dipole?
Answer: ✔✔ A fleeting, temporary shift in the electron cloud density of an atom
or molecule, which creates a brief moment of partial positive and negative charges.
Question: What is the definition of volatility?
Answer: ✔✔ A chemical property that measures how readily or easily a substance
transitions from a liquid phase into a gaseous or vapor state at a given temperature.
Question: What does the frequency factor represent in the Arrhenius Equation?
Answer: ✔✔ Symbolized as $A$, it represents the total frequency of collisions
between reactant molecules that possess the correct orientation to potentially
overcome the activation energy barrier per unit of time.
Question: What is an elementary step in a chemical reaction?
Answer: ✔✔ An individual, single-stage reaction process that occurs exactly as
written and cannot be simplified into smaller chemical steps. Because it happens in
a single event, its molecularity directly dictates its specific rate law order.
catalyst -ANSWER ✔✔substance that increases the rate of reaction without being
consumed
, what does the equilibrium constant represent -ANSWER ✔✔the relationship
between products and reactants of a reaction at equilibrium
amphoteric substances -ANSWER ✔✔Substances that can react as both acids and
bases, such as H20 and NH3
strong acids -ANSWER ✔✔HCl, HBr, HNO3, H2SO4, HClO4
weak acids -ANSWER ✔✔carboxylic acids, acetic acid, hydrofluoric acid
strong bases -ANSWER ✔✔NaOH, KOH
weak bases -ANSWER ✔✔NH3, amines (anything with NH2)
functional group -ANSWER ✔✔group of atoms within a molecule having
characteristic chemical behavior
alkanes -ANSWER ✔✔saturated, single bonds
alkenes -ANSWER ✔✔have unsaturated, double bonds
alkynes -ANSWER ✔✔have unsaturated, triple bonds
arenes -ANSWER ✔✔have alternating double/single bonds, often in an "aromatic
ring"
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT
(GUARANTEED SUCCESS)
Question: What is an instantaneous dipole?
Answer: ✔✔ A fleeting, temporary shift in the electron cloud density of an atom
or molecule, which creates a brief moment of partial positive and negative charges.
Question: What is the definition of volatility?
Answer: ✔✔ A chemical property that measures how readily or easily a substance
transitions from a liquid phase into a gaseous or vapor state at a given temperature.
Question: What does the frequency factor represent in the Arrhenius Equation?
Answer: ✔✔ Symbolized as $A$, it represents the total frequency of collisions
between reactant molecules that possess the correct orientation to potentially
overcome the activation energy barrier per unit of time.
Question: What is an elementary step in a chemical reaction?
Answer: ✔✔ An individual, single-stage reaction process that occurs exactly as
written and cannot be simplified into smaller chemical steps. Because it happens in
a single event, its molecularity directly dictates its specific rate law order.
catalyst -ANSWER ✔✔substance that increases the rate of reaction without being
consumed
, what does the equilibrium constant represent -ANSWER ✔✔the relationship
between products and reactants of a reaction at equilibrium
amphoteric substances -ANSWER ✔✔Substances that can react as both acids and
bases, such as H20 and NH3
strong acids -ANSWER ✔✔HCl, HBr, HNO3, H2SO4, HClO4
weak acids -ANSWER ✔✔carboxylic acids, acetic acid, hydrofluoric acid
strong bases -ANSWER ✔✔NaOH, KOH
weak bases -ANSWER ✔✔NH3, amines (anything with NH2)
functional group -ANSWER ✔✔group of atoms within a molecule having
characteristic chemical behavior
alkanes -ANSWER ✔✔saturated, single bonds
alkenes -ANSWER ✔✔have unsaturated, double bonds
alkynes -ANSWER ✔✔have unsaturated, triple bonds
arenes -ANSWER ✔✔have alternating double/single bonds, often in an "aromatic
ring"
