Chemical Reactions Quiz

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Questions and Answers

What are the substances that undergo change in a chemical reaction?

  • Catalysts
  • Solvents
  • Reactants (correct)
  • Products

What is the law that states that mass is conserved in a chemical reaction?

  • Law of Multiple Proportions
  • Law of Conservation of Mass (correct)
  • Law of Definite Composition
  • Law of Definite Proportions

What is a substance that speeds up a chemical reaction without being consumed in the reaction?

  • Enzyme
  • Substrate
  • Inhibitor
  • Catalyst (correct)

Chemical reactions involve the breaking and formation of chemical bonds.

<p>True (A)</p> Signup and view all the answers

During a chemical reaction, the total mass of the products is always equal to the total mass of the reactants.

<p>True (A)</p> Signup and view all the answers

Chemical reactions can only occur in liquid solutions.

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

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Study Notes

Chemical Reactions

  • Reactants are the substances that undergo change in a chemical reaction.
  • The Law of Conservation of Mass states that mass is conserved in a chemical reaction, meaning the total mass of the products is always equal to the total mass of the reactants.
  • A catalyst is a substance that speeds up a chemical reaction without being consumed in the reaction.
  • Chemical reactions involve the breaking and formation of chemical bonds.
  • Chemical reactions can occur in various states, not just liquid solutions.

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