Energy Changes in Chemical Reactions Quiz

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Questions and Answers

Which type of chemical reaction is characterized by the absorption of thermal energy?

  • Exothermic reaction
  • Catalytic reaction
  • Activation energy reaction
  • Endothermic reaction (correct)

What is the minimum amount of energy required to start a chemical reaction?

  • Thermal energy
  • Reaction energy
  • Activation energy (correct)
  • Collision energy

Which factor does NOT affect the rate of a chemical reaction?

  • Surface area
  • Charge of reactants (correct)
  • Temperature
  • Concentration

In an exothermic reaction, the $\Delta H$ value is typically:

<p>Negative (B)</p> Signup and view all the answers

Which of the following is NOT a characteristic of a catalyst?

<p>Is consumed in the reaction (C)</p> Signup and view all the answers

Which type of chemical reaction is responsible for the burning of a candle?

<p>Exothermic reaction (C)</p> Signup and view all the answers

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