change in pressure
change in concentration
change in moles
change in volume

2. Which three factors affect the rate of a chemical reaction?

temperature, reactant concentration, and catalyst
catalyst, product concentration, and container volume
temperature, pressure, and humidity
temperature, reactant concentration, and pressure

3. What is equal to the slope of the reaction?

instantaneous rate
catalyst
activation energy
Le Chatelier's Principle

4. An increase in temperature...

decreases the rate of the reaction
increases the rate of the reaction
doesn't do a thing to the rate of the reaction
stops the rate of the reaction

5. A catalyst...

speeds up the reaction while being consumed
slows down the reaction while being consumed
speeds up the reaction without being consumed
slows down the reaction without being consumed

6. Which of the following will lower the activation energy for a reaction?

increasing the concentrations of reactants
raising the temperature of the reaction
adding a suitable catalyst
all of the above

7. Which one of the following statements is incorrect?

Activation energies of simple reactions can be negative.
More molecules in a gas have energies above some threshold value as the temperature is increased.
The rates of two reactions can be equal at one temperature but differ at another.
The lower the activation energy, the faster the rate if equal numbers of collisions are always involved.

8. In a series of reactions, which is the rate-determining step?

the simplest reaction
the fastest reaction
the slowest reaction
the main reaction involving a major reactant