Can You Handle the Heat?
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Questions and Answers

Which of the following statements is true about endothermic reactions?

  • They take more energy to break bonds in the reactants than is released when new bonds form in the products (correct)
  • They do not involve any energy changes
  • They release more energy than is needed to break bonds in the reactants
  • They involve energy being released when new bonds form in products

    • What is the main reason behind the instant ice pack getting cold when squeezed?

  • Endothermic chemical reaction (correct)
  • Melting of ice inside the pack
  • Exothermic chemical reaction
  • Freezing of water inside the pack

    • What is the role of energy in chemical reactions?

  • Energy is used to break bonds in products
  • Energy is used to break bonds in reactants and released when new bonds form in products (correct)
  • Energy is not involved in chemical reactions
  • Energy is released when new bonds form in reactants

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