9. What is the rate of reaction? * 1 point 0 Collision theory 0 The time it takes for a reaction to occur 0 The energy required to break the bond 0 How much energy is needed for a reaction to occur. 10. Collision theory explains rate of * 1 point chemical reaction by O the type of reactants O measuring gas volume 0 the amount of reactant below 0 the frequency of particles. 11. In an endothermic reaction, what * 1 point happened to heat? 0 taken in O absorbed 0 given out n 0 released 13. What process is present in baking * 1 point a bread and cooking an egg? O Endothermic process O Exothermic process O Both O none of the above 14. What will happen to the * 1 point temperature if the chemical reaction is Exothermic? 0 stay the same 0 unstable 15. Remember when you buy Pop * 1 point Rocks candy that pops when you put them in your mouth. They make a sizzling sound as they dissolve. Why do you think the candy pops as it melts in your mouth? n O ItisandW 3. What is the substance that * 1 point increases the rate of reaction without being used up during the reaction? 4. What is the amount of energy * 1 point needed for colliding particles to react? 0 Chemical Energy 0 Potential Energy 0 Activation energy 0 Kinetic Energy 5. Which of the following is/are the * 1 point fundamental idea(s) of collision theory? O Molecules react by colliding together A The effeWcur With temperature if the chemical reaction is Exothermic? O decrease O increase stay the same O unstable 15. Remember when you buy Pop * 1 point Rocks candy that pops when you put them in your mouth. They make a sizzling sound as they dissolve. Why do you think the candy pops as it melts in your mouth? It is and exothermic reaction O It is an endothermic reaction O There is no reason behind O Both Endothermic and Exothermic7. Which of the following will NOT * 1 point affect the reaction rate? 0 polarity 0 temperature 0 catalysts 0 concentration of reactants 8. Which factor 5 increase the rate of * 1 point the reaction? increasing temperature increasing concentration increasing surface area 0000 all of the above 9. What is the rate of reaction? * 1 point O Collision theory 0 The time it takes for a reaction to occur O The energy required to break the bond n Q How much energy is needed for a reaction to occur- 5. Which of the following is/are the * 1 point fundamental idea(s) of collision theory? O Molecules react by colliding together O The effective collisions must occur with certain minimum amounts of energy In a large sample, the greater the number of O effective collisions, and the faster the rate of reaction 0 All of the above 6. What will happen to the particles * 1 point if the temperature increases? O slow down O collide higher O movefaster Q will remain the same 7. Which of the following will NOT * 1 point affect the reaction rate? O polarity MULTIPLE CHOICE 1. How does a catalysts work in * 1 point speeding up a chemical reaction? By lowering the activation energy by giving them more energy By getting more energy By making them more available. 0000 2. What will happen if a catalyst is * 1 point added to a reaction? Increases Decreases Remain the same None of the above 0000 3. What is the substance that * 1 point increases the rate of reaction without being used up during the reaction? 0 catalyst 11. In an endothermic reaction, what * 1 point happened to heat? 0 taken in O absorbed 0 given out O released 12. In an exothermic reaction, what * 1 point happened to heat? 0 taken in O absorbed 0 given out 0 released 13. What process is present in baking * 1 point a bread and cooking an egg? 0 Endothermic process 0 Exothermic process O Both n 0 none of the above