+1-315-636-4485
+91 98151-74050 
This quiz is based on the concepts in AP Chemistry Enduring understanding: "Reaction rates that depend on temperature and other environmental factors are determined by measuring changes in concentrations of reactants or products over time."
Which technique would be most useful to quantify the change in the concentration of aqueous species during a chemical reaction?
Pressure measurements
UV-Visible light spectroscopy
Thin layer chromatography
X-ray chromatography
If the rate law for a reaction is k[A][B]2, what is the overall order of the reaction?
Zero order
First order
Second order
Third order
In the following precipitation reaction in a closed container:
AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3 (aq)
What would be the effect of doubling the pressure in the container?
The reaction rate drops by half
The reaction rate quadruples
The reaction rate does not change
The reaction rate doubles
In the following reaction sequence, which substance is the catalyst?
A + B → C
C + D → E
E → F + G
G → D + H
C
D
A
B
In a reaction, A + B → C, doubling [B] quadruples the reaction rate, and doubling both [A] and [B] increases the rate by 8-fold. What is the order of the reaction with respect to [A]?
Zero
First
Second
Third
Atoms, ions, and molecules can react to form products when they collide, provided that the particles have enough kinetic energy. Which theory is this?
Atomic theory
Collision theory
Reaction theory
Formation theory
What is the substance that initiates or accelerates a chemical reaction without itself being affected?
Solid
Products
Catalyst
Reactants
What is the reaction that releases energy in the form of heat called?
Ectothermic
Endothermic
External
Exothermic
