Chemical Reactions Quiz
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Questions and Answers

What is the process by which substances are transformed into different substances?

  • Condensation
  • Sublimation
  • Evaporation
  • Chemical reaction (correct)

    • What is the change in composition and properties of substances during a chemical reaction called?

  • Atomic change
  • Phase change
  • Chemical change (correct)
  • Physical change

    • Which of the following is NOT a requirement for a chemical reaction to occur?

  • Sufficient activation energy
  • Presence of catalyst
  • Collision between particles
  • Absence of oxygen (correct)

    • What term is used to describe the starting materials in a chemical reaction?

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