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- 1. Multiple ChoiceWhat two factors govern whether a collision between reacting particles will be effective?orientation and potential energykinetic energy and temperaturekinetic energy and orientationpotential energy and kinetic energy
- 2. Multiple ChoiceUnder the collision theory, the particles must collide with ____ and ____ for a reaction to occur.sufficient rate and sufficient energysufficient surface area and correct orientationsufficient catalyst and sufficient energysufficent energy and correct orientation
- 3. Multiple ChoiceMore collisions correspond to a:Faster reaction rateSlower reaction rateConstant reaction rateNone of the above
- 4. Multiple ChoiceWhich of the following is NOT a factor affecting reaction rate?temperaturecatalystsparticle sizepolarity
- 5. Multiple ChoiceWhich of the following factors increases only the effectiveness of collisions?temperaturecatalystsconcentrationparticle size
- 6. Multiple ChoiceReaction rate means...amount of product formedspeed of reactionconcentration of reacting particlescombining reactants with products
- 7. Multiple ChoiceDecreasing the particle size increases the reaction rate becauseIt makes particles move fasterIt increases the likelihood of collisions with the correct geometryIt decreases the surface area available to reactIt increases the number of collisions
- 8. Multiple ChoiceTo slow down a chemical reaction you will do one of the following:Place the reactants in hot waterPlace the products in ice bathPlace the reactants in a ice bathKeep stirring the reactants with a stirring rod
- 9. Multiple ChoiceWhy does a higher temperature increase the rate of a reaction?it increases both the frequency and energy of particle collisionsit only increases the frequency of particle collisionsit only increases the energy of particle collisionsit reduces the activation energy of the reaction
- 10. Multiple ChoiceWhich of the following increase the reaction rate?less surface arealower temperaturean inhibitorincreased concentration
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