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- 1. Multiple Choice
Which of the following increase the reaction rate?
less surface area
lower temperature
increasing pressure
increased concentration
- 2. Multiple ChoiceA catalyst works bychanging the order of the reactionincreasing the temperaturelowering the activation energymaking the activated complex
- 3. Multiple Choice
If the temperature is reduced, a reaction rate will ______
increase
decrease
stay the same
- 4. Multiple Choice
If the concentration of a reactant is increased, the reaction rate will ___________.
increase
decrease
stay the same
- 5. Multiple Choice
The ____________ states that atoms, ions, or molecules must collide in order to react.
transition state
activation energy
rate law
collision theory
- 6. Multiple ChoiceThe rate of a chemical reaction is NOT affected by which of the following:temperatureconcentrationparticle size (surface area)All of these affect reaction rates
- 7. Multiple ChoiceRate of chemical reaction meansamount of product formedspeed of reactionconcentration of reacting particlescombining reactants with products
- 8. Multiple Choice
Grinding a seltzer tablet into powder increases the rate of reaction due to...increased concentration of reactantsincreased surface areaincreased speed of particles.better orientation of reactants - 9. Multiple ChoiceA ______________ is a substance that increases the rate of a reaction without being used up during the reaction.catalystproductreactantsolute
- 10. Multiple ChoiceCatalysts permit reactions to happen with a __________ activiation energy.lowerhigher
- 11. Multiple ChoiceTrue or False? The higher the concentration of a solution the less solutes it has in it.TrueFalse
- 12. Multiple ChoiceSmaller particle size allows for a _________ surface area to be exposed for the reaction.largersmaller
- 13. Multiple ChoiceIncreasing the temperature will increase the kinetic energy of particles, therefore increasing the collisions between particles.falsetrue
- 14. Multiple ChoiceUsually lowering the temperature will slow down a reaction.falsetrue
- 15. Multiple Choice
_______ refers to how much solute is dissolved in
a solution.
Surface Area
Catalyst
Temperature
Concentration
- 16. Multiple Choice
A temperature increase causes the particles
to slow down
move faster
collide higher
in the right order
- 17. Multiple Choice
Which would dissolve faster?
A
B
A and B
None of the above
- 18. Multiple ChoiceA possible rate law for a third overall order of a reaction is __________________Rate = k [A]2[B]2Rate = k [A][B]3Rate = k [A]3 [B]Rate = k [A]2[B]
- 19. Multiple ChoiceWhat type of reaction is this?EndothermicExothermic
- 20. Multiple ChoiceWhich factors increase the rate of a reaction.increasing temperatureincreasing concentrationincreasing surface areaAll of these
- Answer choicesTagsAnswer choicesTags