Chemical Reactions and Equations Quiz

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Questions and Answers

What is the role of a chemical reaction?

  • To transfer energy between reactants and products
  • To maintain the equilibrium between reactants and products
  • To convert reactants into products (correct)
  • To convert products into reactants

What happens during a chemical reaction?

  • The energy of the reactants decreases
  • The mass of the reactants increases
  • The atoms of the reactants are destroyed
  • New substances are formed (correct)

What is the purpose of writing a chemical equation?

  • To show the physical state of the reactants and products
  • To represent the identities and relative amounts of reactants and products (correct)
  • To indicate the temperature at which the reaction occurs
  • To display the color changes during the reaction

What is the significance of balancing a chemical equation?

<p>It demonstrates the conservation of mass in the reaction (D)</p> Signup and view all the answers

What is the role of a catalyst in a chemical reaction?

<p>To appear unchanged at the end of the reaction (B)</p> Signup and view all the answers

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

<p>Volume of products (D)</p> Signup and view all the answers

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Study Notes

The Role of a chemical reaction with equation

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