Chemistry
A gas occupies 4.0 L at 1 atm. If the pressure is increased to 2 atm at constant temperature, what is the new volume?
A. 1.0 L
B. 2.0 L
C. 4.0 L
D. 8.0 L
B. 2.0 L
A small object floats partially submerged in water. Which statement must be true?
A. The object's density is greater than that of water
B. The buoyant force is greater than the object's weight
C. The buoyant force equals the object's weight
D. The object displaces a volume of water equal to its total volume
C. The buoyant force equals the object's weight
A student initially dislikes running but begins running every morning because her friends praise her whenever she joins them. Several months later, she reports genuinely enjoying running even when her friends are not present. This progression is best described as:
A. Compliance → identification → internalization
B. Identification → compliance → internalization
C. Internalization → compliance → identification
D. Compliance → internalization → identification
A. Compliance → identification → internalization
A competitive inhibitor of an enzyme typically causes which change?
Increased Km and unchanged Vmax
Define inert + use it in a sentence
Inactive; lacking the ability or tendency to move/change
The institution remained inert despite social changes
Why does increasing temperature of a reaction result in an increase in reaction rate?
A greater proportion of molecules have sufficient energy to overcome the activation barrier
Water flows steadily through a horizontal pipe. The pipe becomes narrower. According to the continuity equation, which quantity must increase?
A. Density
B. Flow rate
C. Fluid velocity
D. Fluid viscosity
C. Fluid velocity
A physician believes that older patients are less capable of understanding complicated medical information. Without realizing it, she provides them with less detailed explanations than she provides younger patients. Her behavior is most directly an example of:
A. Prejudice
B. Stereotype threat
C. Discrimination
D. Self-fulfilling prophecy
C. Discrimination
Define the hydrophobic effect
Nonpolar molecules clump together when surrounded by polar solvent
Define rendering + use it in a sentence
Causing something to become a certain way; can also mean depicting/representing something
The new evidence challenged the theory, rendering it less convincing.
What effect does a catalyst have on the equilibrium constant of a reaction?
It increases the rates of both forward and reverse reactions without changing equilibrium and by providing an alternative pathway that requires less energy to start.
An ambulance emitting a constant-frequency siren approaches a stationary observer. Which change does the observer detect?
A. Increased frequency and increased wave speed
B. Increased frequency and unchanged wave speed
C. Decreased frequency and unchanged wave speed
D. Increased wavelength and increased frequency
B. Increased frequency and unchanged wave speed
After repeatedly hearing news reports about airplane crashes, a person begins to believe that flying is more dangerous than driving because examples of plane crashes immediately come to mind. Which heuristic is being demonstrated?
A. Representativeness heuristic
B. Availability heuristic
C. Confirmation bias
D. Belief perseverance
B. Availability heuristic
Define a zwitterion
a neutral molecule that has both a positive and a negative electrical charge on different atoms, giving it a net charge of zero
Define antiquarian + use it in a sentence
Concerned with studying, collecting, or valuing things from the past, especially artifacts/books
His antiquarian interests led him to collect medieval manuscripts.
Which statement is true for both galvanic and electrolytic cells?
A. The anode is negative
B. The cathode is positive
C. Oxidation occurs at the anode and reduction occurs at the cathode
D. The reaction is spontaneous
C. Oxidation occurs at the anode and reduction occurs at the cathode
Two sound waves have identical frequencies and amplitudes and meet perfectly in phase. What occurs?
A. Destructive interference
B. Constructive interference
C. The frequency doubles
D. The waves permanently cancel each other
B. Constructive interference
A sociologist argues that schools help society function by teaching children shared values, encouraging cooperation, and preparing individuals for occupational roles. Which theoretical perspective is being used?
A. Conflict theory
B. Symbolic interactionism
C. Functionalism
D. Social constructionism
C. Functionalism
Does hemoglobin have a sigmoidal or hyperbolic loading curve? Why?
Sigmoidal, typical of cooperative binding
Define de facto + use it in a sentence
Existing in practice/reality, even if not officially established
He became the de facto leader despite having no formal title.
Which of the following sets of quantum numbers could represent a valid electron in an atom?
1. n=2, l=2, ml=0, ms=+1/2
2. n=3, l=1, ml=-1, ms=-1/2
3. n=3, l=1, ml=2, ms=+1/2
4. n=4, l=3, ml=-3, ms=+1
2. n=3, l=1, ml=-1, ms=-1/2
A string fixed at both ends forms a standing wave. Which statement correctly describes a node?
A. It is a location of maximum displacement
B. It is a location of zero displacement
C. It is where wave velocity is greatest
D. It occurs only at the center of the string
B. It is a location of zero displacement
A patient begins to think of herself as "sick" after physicians, family members, and coworkers repeatedly treat her according to expectations associated with illness. Which perspective would be most interested in this process?
A. Functionalism
B. Symbolic interactionism
C. Conflict theory
D. Demographic transition theory
B. Symbolic interactionism
Draw the Heme prosthetic group
Look it up
Define usufruct + use it in a sentence
The legal right to use and benefit from property belonging to someone else without owning or destroying it
Farmers received usufruct rights to cultivate the land.