CHEM 104 Exam 9 Questions and
Answers Verified Solutions Latest Update
2026/2027
Question:
A acid is a proton _______________?
Answer:
Donator
Question:
A base is a proton _____________?
Answer:
Acceptor
Question:
Acid ionization involves what?
Answer:
The donation of an acidic proton to water to produce hydronium ions Which of these would be
considered acid ionization?
A. H2O+NH−2■−−■OH−+NH3
B. H2O+H2PO−4■−−■H3PO4+OH−
Question:
C. CN−+H2O■−−■OH−+HCN
D. PH+4+H2O■−−■PH3+H3O+
Answer:
,D
Question:
Term for a substance able to act as either an acid or a base by any definition
Answer:
Amphoteric
Question:
According to the 2nd law of thermodynamics the ______________ of a closed system never
decreases
Answer:
Entropy
Question:
A measure of a solution concentration defined as nsolute/Vsolution is called the
Answer:
Molarity
Question:
The units of the rate of a chemical reaction are
Answer:
M/s
Question:
The time required for a reactant to decrease to half of its original concentration is called a
Answer:
Half life
, Question:
The arrhenius equation specifies the _____________ dependence on the rate of a constant
Answer:
Temperature
Question:
The notion that at equilibrium the rate of forward reaction equals that of the reverse reaction is
called _________Equilibrium
Answer:
dynamic
Question:
The equation giving the concentration of an equilibrium is the law of _________ _____________
Answer:
Mass action
Question:
Le Chatelier's principle states that a chemical system at equilibrium _________ an imposed change
Answer:
Counteracts
Question:
In the context of the bronsted-lowry definition a base is a
Answer:
proton acceptor
Question:
At 25 ' C the ion product of water (KW) has the value of 10
Answers Verified Solutions Latest Update
2026/2027
Question:
A acid is a proton _______________?
Answer:
Donator
Question:
A base is a proton _____________?
Answer:
Acceptor
Question:
Acid ionization involves what?
Answer:
The donation of an acidic proton to water to produce hydronium ions Which of these would be
considered acid ionization?
A. H2O+NH−2■−−■OH−+NH3
B. H2O+H2PO−4■−−■H3PO4+OH−
Question:
C. CN−+H2O■−−■OH−+HCN
D. PH+4+H2O■−−■PH3+H3O+
Answer:
,D
Question:
Term for a substance able to act as either an acid or a base by any definition
Answer:
Amphoteric
Question:
According to the 2nd law of thermodynamics the ______________ of a closed system never
decreases
Answer:
Entropy
Question:
A measure of a solution concentration defined as nsolute/Vsolution is called the
Answer:
Molarity
Question:
The units of the rate of a chemical reaction are
Answer:
M/s
Question:
The time required for a reactant to decrease to half of its original concentration is called a
Answer:
Half life
, Question:
The arrhenius equation specifies the _____________ dependence on the rate of a constant
Answer:
Temperature
Question:
The notion that at equilibrium the rate of forward reaction equals that of the reverse reaction is
called _________Equilibrium
Answer:
dynamic
Question:
The equation giving the concentration of an equilibrium is the law of _________ _____________
Answer:
Mass action
Question:
Le Chatelier's principle states that a chemical system at equilibrium _________ an imposed change
Answer:
Counteracts
Question:
In the context of the bronsted-lowry definition a base is a
Answer:
proton acceptor
Question:
At 25 ' C the ion product of water (KW) has the value of 10
