Chemical Reactions Quiz
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Questions and Answers

What is a chemical reaction?

  • The change in color of a substance
  • The change in state of a substance
  • A process that leads to the transformation of one set of chemical substances to another (correct)
  • The rearrangement of atoms in a substance
  • What is the role of catalysts in chemical reactions?

  • Slow down the rate of a chemical reaction
  • Prevent a chemical reaction from occurring
  • Speed up the rate of a chemical reaction without being consumed in the process (correct)
  • Change the products of a chemical reaction
  • What is the Law of Conservation of Mass in relation to chemical reactions?

  • Matter can be transformed into energy in a chemical reaction
  • Matter cannot be created or destroyed in a chemical reaction (correct)
  • Matter is created in a chemical reaction
  • Matter is destroyed in a chemical reaction
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