C2- Rates and energy

HideShow resource information

1. What is an Exothermic reaction?

  • A reaction where gas is given off
  • A reaction where the reactants are used up
  • A reaction where heat energy is given out
  • A reaction where heat energy is taken in
1 of 7

Other questions in this quiz

2. A successful collision is one in which:

  • Particles bounce off each other
  • Enough energy is transferred for particles to react
  • Enough energy is transferred for particles to bounce off each other
  • The particles hit each other

3. 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

4. What increases the rate of a reaction?

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

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

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

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Rate of reaction resources »