Chem 104 exam 2 Latest Update 2025-2026 Exam
100 Questions with 100% Verified Correct
Answers Guaranteed A+
A acid is a proton _______________? - CORRECT ANSWER: Donator
A base is a proton _____________? - CORRECT ANSWER: Acceptor
A change in which of the following changes the rate constant of a reaction?
A. concentration
B. pressure
C. volume of the reaction vessel
D. time since the start of reaction
E. Temperature - CORRECT ANSWER: E. temperature
A lewis acid is defined as a ____________ _____________ - CORRECT ANSWER:
Electron pair acceptor
A lewis base is defined as a ______ _______ ________ - CORRECT ANSWER:
electron pair donor
A measure of a solution concentration defined as nsolute/(nsolute+nsolvent) is called
the _________ ____________ - CORRECT ANSWER: Mole fraction
A measure of a solution concentration defined as nsolute/Vsolution is called the -
CORRECT ANSWER: Molarity
, A substance that facilitates a chemical reaction without being used in the process is
called a - CORRECT ANSWER: Catalyst
A weak acid will have a
A. a low Ka value and a large percent ionization
B. a large percent ionization
C. a large Ka value and a low percent ionization
D. a low Ka value - CORRECT ANSWER: D
According to the 2nd law of thermodynamics the ______________ of a closed system
never decreases - CORRECT ANSWER: Entropy
According to the rule of thumb, close to room temperature an increase T by 10'C
A. decreases rate by a factor of 10
B. increases rate by a factor of 2-3
C. decreases rate by a factor of 2-3
D. increases rate by a factor of 8-27 - CORRECT ANSWER: B
Acid ionization involves what ? - CORRECT ANSWER: The donation of an acidic proton
to water to produce hydronium ions
As T decreases, the solubility of salts in water generally?
A. Increase
100 Questions with 100% Verified Correct
Answers Guaranteed A+
A acid is a proton _______________? - CORRECT ANSWER: Donator
A base is a proton _____________? - CORRECT ANSWER: Acceptor
A change in which of the following changes the rate constant of a reaction?
A. concentration
B. pressure
C. volume of the reaction vessel
D. time since the start of reaction
E. Temperature - CORRECT ANSWER: E. temperature
A lewis acid is defined as a ____________ _____________ - CORRECT ANSWER:
Electron pair acceptor
A lewis base is defined as a ______ _______ ________ - CORRECT ANSWER:
electron pair donor
A measure of a solution concentration defined as nsolute/(nsolute+nsolvent) is called
the _________ ____________ - CORRECT ANSWER: Mole fraction
A measure of a solution concentration defined as nsolute/Vsolution is called the -
CORRECT ANSWER: Molarity
, A substance that facilitates a chemical reaction without being used in the process is
called a - CORRECT ANSWER: Catalyst
A weak acid will have a
A. a low Ka value and a large percent ionization
B. a large percent ionization
C. a large Ka value and a low percent ionization
D. a low Ka value - CORRECT ANSWER: D
According to the 2nd law of thermodynamics the ______________ of a closed system
never decreases - CORRECT ANSWER: Entropy
According to the rule of thumb, close to room temperature an increase T by 10'C
A. decreases rate by a factor of 10
B. increases rate by a factor of 2-3
C. decreases rate by a factor of 2-3
D. increases rate by a factor of 8-27 - CORRECT ANSWER: B
Acid ionization involves what ? - CORRECT ANSWER: The donation of an acidic proton
to water to produce hydronium ions
As T decreases, the solubility of salts in water generally?
A. Increase
