Chemical Reaction and Equations Quiz
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Questions and Answers

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

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

    • What is the balanced chemical equation for the reaction between hydrogen and oxygen to form water?

  • H2O -> H + O
  • H2O2 -> H2O
  • 2H2 + O2 -> 2H2O (correct)
  • H2 + O2 -> H2O

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

  • Change in shape only
  • Change in state only
  • Formation of new substances (correct)
  • Reversible process

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