Chemical Reactions Quiz
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Questions and Answers

Which of the following is an example of a chemical reaction?

  • Mixing of salt and water
  • Melting of ice
  • Burning of wood (correct)
  • Boiling of water

    • Which of the following is a characteristic of chemical reactions?

  • They can only occur at high temperatures
  • They involve the formation or breaking of chemical bonds (correct)
  • They can only occur in living organisms
  • They can only occur in a laboratory setting

    • What is the purpose of a catalyst in a chemical reaction?

  • To increase the temperature of the reaction
  • To slow down the reaction
  • To provide energy for the reaction
  • To speed up the reaction (correct)

    • Which of the following is an example of a chemical reaction?

    <p>Burning wood</p> Signup and view all the answers

    What happens to the mass of substances during a chemical reaction?

    <p>Mass is always conserved</p> Signup and view all the answers

    What is the role of a catalyst in a chemical reaction?

    <p>It speeds up the reaction rate</p> Signup and view all the answers

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