C2- Rates and energy

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1. How does a catalyst increase the rate of reaction?

  • Pushes the particles closer together
  • Lowers the activation energy
  • Makes the particles move faster
  • Increases the energy of the reaction
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Other questions in this quiz

2. Which of the following statements about collisions is correct?

  • Only fast-moving particles collide with each other
  • Reactions can happen if the colliding particles have enough energy
  • All colliding particles have the same amount of energy
  • Collisions only happen if there is heat

3. What is the minimum amount of energy required for a reaction called?

  • Catalyst energy
  • Activation Energy
  • Reactor energy
  • Minimum energy

4. What increases the rate of a reaction?

  • Temperature
  • None of the ones stated
  • Surface area
  • Concentration
  • All of the ones stated
  • Pressure

5. What happens when the surface area of a solid is increased?

  • The rate of reaction increases
  • The rate of reaction decreases
  • No change
  • The reaction expands


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