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15 Nov 2019
Worksheet Module 1Sa Which of the following can affect the rate of a reaction? a. changing the amount of reactant c. the presence of a catalyst 1. b. heating or cooling d)all of the above 2. What is the scientific verb used to describe how particles bump onto each other? a. crash collide c. cascade 3. What effect does an increase in this type of energy have on the particles? Choose two. a. it makes them move around faster b. it decreases the number of collisions c. it slows them down d. it increases the number of collisions 4. The activation energy of a reaction a. is the overall energy change of a reaction b. is the energy barrier that has to be crossed to initiate a reaction c. is affected by catalysts d. is unaffected by catalysts e. both the energy barrier that has to be crossed to initiate a reaction and is affected by catalysts 5. To react, gas particles must a. be in the same physical state c. have different energies b. have the same energy d. collide 6. To be effective, a collision requires b. a favorable orientation a. sufficient energy c. sufficient energy and a favorable orientation d. a reaction mechanism
Worksheet Module 1Sa Which of the following can affect the rate of a reaction? a. changing the amount of reactant c. the presence of a catalyst 1. b. heating or cooling d)all of the above 2. What is the scientific verb used to describe how particles bump onto each other? a. crash collide c. cascade 3. What effect does an increase in this type of energy have on the particles? Choose two. a. it makes them move around faster b. it decreases the number of collisions c. it slows them down d. it increases the number of collisions 4. The activation energy of a reaction a. is the overall energy change of a reaction b. is the energy barrier that has to be crossed to initiate a reaction c. is affected by catalysts d. is unaffected by catalysts e. both the energy barrier that has to be crossed to initiate a reaction and is affected by catalysts 5. To react, gas particles must a. be in the same physical state c. have different energies b. have the same energy d. collide 6. To be effective, a collision requires b. a favorable orientation a. sufficient energy c. sufficient energy and a favorable orientation d. a reaction mechanism
Deanna HettingerLv2
9 Oct 2019